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Pentax Point and Shoot and Non-DSLR
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Pentax Optio A30 Digital Camera Reviewby James MurrayPublished on September 17, 2007
The back of the Pentax Optio A30 has a stripped-down design. The 2.5-inch, 232,000-pixel LCD monitor takes up two-thirds of the camera’s back face. With such a small camera frame and large LCD, there’s no room for an optical viewfinder. In the upper right corner of the camera body’s back is the zoom toggle control - a small, silver horizontal bar with two raised sides for the telephoto and wide-angle zoom. When in Playback mode, these controls engage both playback zoom and multi-up viewing displays.
The four-way control is used to navigate the menu structure, as well as scroll through images in the Playback mode. When in Shooting mode, the up arrow accesses the self-timer settings; the right arrow the Focus modes; the down arrow the mode “palette,” enabling the user to shift between program, preset shooting, and other modes; and the left arrow the flash settings. Beneath the four-way control is a small, lozenge-shaped menu button. To the right of the menu button is the Green mode/delete button. Left Side (7.75) The in-camera monaural speaker is located at the bottom of the left side and is the only feature of note on the left side.
The right side of the Pentax Optio A30 has a port cover that blends into the camera’s design. It is attached to the camera body with two very strong rubber strips. The raised silver plastic makes opening the door a bit of a hassle, but once open it can be moved out of the way to easily access the DC input and PC/AV terminals. The lengthy cover tethers can be annoying when attempting to snap the cover back into the body of the camera quickly. Above the port cover is an eyelet for the included wrist-strap.
The top of the Pentax Optio A30 features three controls. The power button is located next to a sizeable rectangular shutter button on the far right side of the camera’s top. A green LED light surrounds the power button, indicating when the camera is powered on. A shake reduction preview button is located on the left side of the camera’s top, meant to be quickly reached for some reason.
A tripod socket is positioned directly in the middle of the Pentax Optio A30’s bottom side, which will obstruct access to the battery and memory card slots. When not obstructed by a tripod, the port cover is easily accessible and flips open by pressing the cover slightly while sliding it to the right. The cover and hinge are well built and should stand up to some mishandling.
Color (6.61) We tested the color accuracy of the Pentax A30 by photographing an industry standard GretagMacbeth ColorChecker test chart. The ColorChecker consists of 24 tiles of different colors, including sky blues, grass greens, and flesh tones. We ran the images through Imatest to compare the colors the camera reproduced with the actual known colors of the test chart. The image below compares the camera's rendered colors with the actual colors of the chart. In each color tile, the outside squares are the colors the camera reproduced, the inside squares are the actual colors of the chart corrected for the exposure, and the small inside rectangles are the actual colors of the chart at a perfect exposure.
Manufacturers will often boost or shift certain colors to make photos look better. For example, blues are often shifted to make clear skies look more brilliant. The problem is, when colors are shifted by the camera, users will never know what they really were, and color correction in post-processing will be limited.
As you can see in the color spectrum graph, many of the colors are shifted from their ideal values, especially yellows and blues. Since the yellows are shifted green, this could lead to unpleasing portrait shots. There is also a general trend to undersaturate colors, which means colors won’t “pop” without adjusting the saturation in post production. Overall, the A30 shifts colors a bit more than we would like to see.
Resolution (7.51)
These resolution numbers are quite impressive, except for the substantial vertical oversharpening. Cameras automatically sharpen images in order to make them appear more crisp right out of the camera. The problem with too much sharpening (especially in high megapixel cameras) is that it can introduce unwanted, ugly artifacts that hide real visual information. The 19.4 percent vertical oversharpening in the Pentax A30 is much more than necessary, and if you look at the high resolution image of the resolution chart you can see white “ghosting” lines. These lines will be noticeable along edges of high contrast in large prints. Despite this issue, the A30 has impressive resolution and scored above average compared to other 2007 point-and-shoots. It scored better than the similarly priced Canon PowerShot SD750 and Sony Cyber-shot T100, though not as well as the Fujifilm FinePix F40fd.
Noise – Manual ISO (5.71)
As you can see in the graph above, the A30 breaks the golden rule. Noise rises quickly up to ISO 800, and then drops at ISO 1600. Have Pentax engineers broken the laws of physics? Alas, they have not, at least for now. What is actually going on, as given away by closer inspection of the test images, is that more noise reduction is being applied at ISO 1600. This noise reduction smoothes over the noise, which removes some of the ugly splotchiness, but in turn greatly reduces the amount of detail. This is evidence that the ISO 1600 setting is too much for the A30 to handle, and should be used sparingly. Keep the ISO as low as you can with this camera.
Noise – Auto ISO (1.19)
White Balance (7.29)
Preset (8.61)
Still Life Sequences
Low Light (6.50) In order to get a look at how a camera performs in different lighting conditions, we dim the studio lights and test the camera’s ability to perform in low light. We photograph the ColorChecker at light levels of 60, 30, 15, and 5 lux. 60 lux corresponds to the light levels of a room softly lit by two lamps, 30 lux corresponds to a room illuminated by a single 40 watt bulb, and 15 and 5 lux are very low light that test the limits of the sensor.
When set to ISO 1600, the A30 does not expose properly at 5 lux, proving that the sensor is limited in low light. Color accuracy also does not hold up well in low light; at 60 lux the mean color error is 13.7 and the saturation is 118 percent, which is too much color saturation for shooting with default color settings. However, noise levels stayed admirably low, only reaching about 1.6 percent, which is great for ISO 1600. Yet, as we discussed in the Noise section above, the low noise levels come at the expense of sharpness and detail.
Dynamic Range (6.34)
At ISO 64 and 100, the Pentax A30 does an excellent job with dynamic range, detecting almost 7.5 Exposure Values (EV). Note that these specific values are under ideal shooting conditions, so you will probably not be able to see the full 7.5 stops in your own photos. That said, the camera performs better than most other point-and-shoots we tested this year. As you can see in the graph, the dynamic range falls off steadily at higher ISO sensitivities, so it is ideal to keep the A30 at low ISO setting whenever possible.
Speed/Timing – All speed tests were conducted using a Kingston Ultimate 2GB 120X SD Card.
Low Light – 30 lux
Resolution
Motion
[page title="Components"]
Control Button/Dial Positioning/Size (6.25)
Once in Playback mode, pressing the down arrow of the four-way control interface enters the Playback menu system. The Playback menu is an icon-based system navigated using the directions of the four-way control. Its cartoon-style symbols are supposed to make this menu structure more “user friendly,” but some users may find a text-based menu system is less of a hassle.
The Setup menu is entered through the Record menu by using the up arrow on the four-way control to highlight the Record menu tab, then pressing the right arrow of the four-way control. The Setup menu uses the same text-based list structure as the Record menu, and navigation is both fast and easy.
Ease of Use (7.5)
The Pentax Optio A30 comes with a Movie mode that is capable simultaneously capturing audio via the monaural microphone on the front of the camera. Unlike the less expensive M30 that positions the microphone away from gripping fingers, however, the A30’s microphone is right where fingers may wrap around the camera.
The Movie mode is entered by selecting the film camera icon in the Capture mode palette. Once entered, video resolution, frame rate, and other manual controls can be altered through the same Record mode menu used in still Shooting modes. The resolution options for this camera are 640 x 480 or 320 x 240, with a maximum 30 fps recording rate. Movie clips are compressed using the DivX MPEG-4 movie compression algorithm. Manual focus can be altered before shooting, but once recording begins the user cannot make further alterations. The camera also includes a dedicated Shake Reduction setting for stabilizing videos during movie capture. Unfortunately, while video capture options seem well conceived, the camera's performance leaves users longing for a camcorder. To read more about the A30's video quality, refer to the Testing/Performance section of this review. Shooting in Continuous mode begins as soon as the shutter button is depressed and ends when the shutter button is released or the camera’s memory is full. When shooting with the Burst mode, the camera will not discharge the flash and focus because exposure and white balance are determined prior to the first frame and will remain locked until the shutter is released.
[page title="Control Options"] Manual Control Options The Pentax Optio A30 might be small, sleek, and minimalist in its design, but it comes with an impressive list of manual control features that should certainly satiate the demands of the budding photo enthusiast. The list of options is comprehensive. Users can manually control focus, ISO, white balance, exposure, shutter speed, aperture, and metering, although the degree of functionality offered varies from control to control. The manual controls can be found within the Record menu of the Capture modes as well as on the four-way controls on the back of the camera. Focus Auto Focus (7.25) The Pentax Optio A30 has a 5-point TTL contrast detection autofocus system. The camera’s autofocus features extend beyond the standard Auto and Macro modes with a wide selection of settings. They are: Standard, Macro, Super Macro, Pan Focus, and Infinity mode. The settings are displayed vertically along the right side of the LCD screen and are accessed by pressing the right arrow of the four-way control. Also listed in this display is the manual focus option. The Pan Focus and Infinity mode settings are not typical of a camera in this price range. Pan Focus is intended for shooting subjects that are far apart. When shooting in this mode the camera has an approximate range of 7.55 feet to infinity in full wide and 30.51 feet to infinity in full telephoto. The Infinity mode is used for subjects far away from the camera. The Super Macro mode worked with impressive results, aptly handling the entire 2.3- to 5.9-inch range. The camera’s Face Recognition AF and AE features are only functional in the Portrait and Kids Scene modes. The A30’s face detection system locates, focuses on, and sets the appropriate exposure for human faces. Photographers can choose from three autofocus area options. Multiple uses a wide area in the center of the screen and focuses on the closest subject. The Spot mode is used to focus on a specific subject. The Automatic Tracking mode tracks and continuously readjusts focus on a moving subject. There is a 2-second delay before the scene snaps into focus, and it struggles when shooting in low light or at close proximity with the standard Shooting mode. Also, the image on the LCD jumps slightly when the shutter is partially depressed. Though the A30 offers a nice selection of focus options, its slowness may cause unfocused shots or missed moments. Manual Focus (5.5) Shifting to the Focus mode is simple when in Capture mode; press the right arrow of the four-way control. This opens an on-screen display listed vertically as a series of icons on the right side of the LCD. In addition to a handful of autofocus modes is a manual focus option. The focusing range is displayed vertically on the left side of the LCD. It is sluggish, so patience is essential. When manual focus in engaged, The center of the screen expands to fill the entire LCD when adjusting focus; some users may find this more frustrating than helpful. The manual focus range for the Pentax Optio A30 is 0.06 meters to infinity in full wide-angle and 0.35 meters to infinity in full telephoto. Though the A30’s manual focus is slow, it is a feature that many of its competitors do not include. It will come in handy when the autofocus system struggles to focus in low light or on a low contrast subject. Metering (7.5) Users can adjust metering with the Pentax Optio A30, a great feature considering the number of times difficult lighting conditions, such as backlit scenes, ruin an otherwise well composed photograph. The different metering settings give users the option to set how much of a scene the camera uses to determine proper exposure. The A30’s metering options, listed within the Record mode menu, are: Multi-Segment, Center-Weighted, and Spot metering. The Multi-Segment mode measures the exposure for the image based on the entire composition; Center-Weighted adjusts based largely upon the center of the screen; and Spot metering depends on a small area in the center of the screen. The Metering modes are easy to use and alter. Metering options are found in most cameras in this price range and are an exceedingly helpful feature. Exposure (7.75) Manual controls are one of the A30’s big selling points. There are Program, Shutter Priority, and Manual Exposure modes. The Pentax Optio A30 has an exposure compensation setting that can be adjusted +/- 2 EV. The EV compensation scale, located in the Record menu, is similar to most point-and-shoots, and can be adjusted in 1/3 EV increments by pressing the left and right arrows of the four-way control. If taking photos using the Auto mode, the exposure is set to +/- 0 EV.
White balance is another of the Pentax Optio A30’s features that can be manually controlled. The white balance settings are listed in the Record menu, and include a number of presets, as well as Auto and Manual modes. The preset white balance options for the A30 are Daylight, Shade, Tungsten, and Fluorescent. Some competing cameras such as the Canon SD40 offer multiple Fluorescent settings, but the A30 has an adequate amount of white balance presets.
ISO (8.75) The image sensitivity for the Pentax Optio A30 is also manually controllable. The ISO feature is in the Sensitivity submenu in the Record menu. In addition to Auto, the camera provides photographers with a range from 64 to 1600 ISO. The Digital SR shooting mode option within the Custom shooting mode palette can expand the image sensitivity to 3200 ISO, although at this level the image quality will be marred by noise and the image resolution will be drastically reduced from the maximum 3648 x 2736 to 2592 x 1944.
The shutter speed for the Pentax Optio A30 can be adjusted in both the Shutter Priority and Manual Exposure modes, located in the Capture mode. Users can choose from the Program, Shutter, and Manual exposure icons listed in the upper left corner of the LCD.
Although not entirely user-friendly for novices, the manual shutter speed feature is a great addition. While some competing cameras such as the TZ3 have longer shutter speeds, others, such as the Canon SD40, do not give users manual control of this setting. Aperture (2.0) The Optio A30 has an aperture range from f/2.8 to 5.4. The inclusion of manual aperture control is a surprising feature on this petite camera, but manual control enthusiasts will find its presence to be an advantage over many similarly-priced cameras. Aperture is accessed through the camera’s Manual Exposure mode, located within the Program/Tv/M mode. Once the Manual mode is selected, the aperture is adjusted using the up and down arrows of the four-way controller. The maximum aperture for the camera is f/2.8 in wide-angle and f/5.4 in telephoto.
Picture Quality / Size Options (7.5) Both the picture quality and size options for the Pentax Optio A30 are listed within the Record menu of the camera. The quality and size settings are listed in separate submenus, and users will find both displays to be easy to understand and navigate. The image size options for this camera are 10M (3648 x 2736), 7M (3072 x 2304), 5M (2592 x 1944), 3M (2048 x 1536), 2M (1600 x 1200), 1024 (1024 x 768), and 640 (640 x 480). There are three quality settings for the Pentax Optio A30, represented as stars in the menu structure. The default setting is two stars, known as “better,” with three stars equaling “best,” or lowest compression ratio. One star means “good,” and is the heaviest compression ratio most suitable for e-mails or Internet use.
Picture Effects Mode (8.0) The Pentax Optio A30 has in-camera control of picture settings in the Capture and Playback menu systems. The A30 offers more picture effects than most of its competitors. This area is also a strongpoint of the Canon SD40. The photographer can set the camera’s sharpness, saturation, and contrast prior to capturing images. All three settings are listed in the Record menu and are adjusted using the left and right arrows of the four-way control. In Playback the camera has numerous digital effects that can be applied to captured images. The icon-based menu system provides access to Color, Digital, and Brightness Filters. The Color Filter options for the camera include Black and White, Sepia, eight Color Settings, Black and White with Green, and Black and White with Blue. The Digital Filters for the camera are Soft, Illustration, Special Effect 1, Special Effect 2, and Slim. The Brightness filter adjusts the exposure level of an image from +/-2 EV in 1/3 EV steps. [page title="Connectivity / Extras"] Connectivity Software (6.0) The Pentax Optio A30 comes with a software package for image editing and viewing on a computer. The ACDSee for Pentax software has been the standard included software platform included with Pentax cameras for several years, and can be described as rudimentary at best. If working with a Windows computer, the user will also have the ability to run ACD Showtime! The ACDSee software positions a file list along the left side of the program window and allows users to easily scan through devices, folders, and drives. It is also possible, but more of a hassle, to scan these files through the small buttons located horizontally along the top of the window. These buttons include previous folder, next folder, up a folder, refresh, add to favorites, find, view, print, set to desktop picture, file info, preferences, thumbnails view, wide thumbnail view, small icons view, and details view. The image alteration settings in this software are unimpressive considering how much the camera costs and the manual controls it houses. Users can adjust the image rotation, image flipping, crop, auto levels, and slide show viewing. Considering the ability of other post-production editing programs included with competing cameras, it’s definitely time for Pentax to step up its game. As it stands currently the ACDSee software is merely a glorified viewer, not a capable image-editing program. Memory (4.25) The Pentax Optio A30 comes with an included 22 MB of internal memory, which will only hold five or six high-resolution images. Users will need to invest in at least one SD or SDHC memory card. The memory card slot is located on the bottom of the camera in a terrible position if needing to swap out memory cards while shooting on a tripod. By not employing a proprietary memory format, however, the Pentax Optio A30 allows a wider variety of cards at a variety of prices. Direct Print Options (6.75) The Pentax Optio A30 is equipped with the ability to send photos directly to a printer. Direct printing is an exceptionally easy process with this camera. Users connect the camera’s PC/AV terminal, located beneath a port cover on the right side of the camera, to the USB port on a PictBridge compatible printer. From there, an opaque display on the LCD screen has options for Print All, Print One, or DPOF setting. Users can scan individual photos using the left and right arrows of the four-way control if printing individual photos. Once a desired image is found the up and down arrows of the four-way control adjust the number of copies to be printed. The green button adjusts whether the date will or won’t be shown. Once this is set and the OK button is pressed the next screen allows for adjustments to paper size, paper type, quality, and border status. Once these settings have been adjusted or ignored the user must press the OK button twice for the image to be printed. Pressing the menu button cancels printing. In addition to printing images individually, the user can also print all images simultaneously, with control over the number of copies, setting of the date, and print setting. Battery (3.0) The Pentax Optio A30’s lithium-ion battery slides into a slot on the bottom of the camera body, unfortunately positioned near the tripod socket. It holds a charge for approximately 150 shots, which is not very long. If you plan to use the camera for an extended period of time, we recommend buying an additional battery for back up. Jacks, ports, plugs (5.0) The jacks, ports, and plugs for the Pentax Optio A30 are concentrated on the right side and bottom of the camera. The lithium-ion battery and SD/SDHC memory card slots are located under a cover on the bottom right half of the camera. Press the cover while sliding it to the right to pop it open. The tripod socket to the left of this cover is poorly placed and will compromise access to these ports if being used during shooting. The DC in and PC/AV ports are located under a plastic cover on the right side of the camera. Other Features (5.0) Shake Reduction Modes – The Pentax Optio A30 is equipped with a more advanced shake reduction system in comparison to less expensive Pentax models. It includes a sensor-shift shake reduction system (mechanical image stabilization) to compensate for camera shake. Additionally, the Digital SR mode extends the sensitivity range to ISO 3200 to increase the shutter speed in low light scenes. While this can be useful, it degrades image quality. The Movie mode’s Shake Reduction marginally reduces camera shake when compared to footage captured with the digital SR turned off. Face Recognition AF and AE – This feature works as part of the Portrait and Kids Scene modes. It automatically detects faces and adjusts focus and exposure. [page title="Overall Impressions"] Value (6.75) The Pentax Optio A30 has a 3x optical zoom lens, a 2.5-inch LCD screen with an impressive 232,000 pixels, a full palette of manual controls, including shutter and aperture, as well as a fully equipped Movie mode that can record simultaneous monaural audio files. Its array of features make it a better value than the Canon SD40, but the Panasonic TZ3 has similar features and a longer 10x zoom and bigger LCD screen. Considering all these features, the well built camera body and layout that can appeal to both experienced and utter novice photographers, the initial $349.95 price tag isn’t unwarranted. Comparisons Canon PowerShot SD40 – This point-and-shoot camera by Canon has a stainless steel body and available in Precious Rose, Twilight Sepia, Olive Gray, and Noble Blue. It had an initial $349 retail price. This 7.1-megapixel SD40 comes with an underwhelming 2.4x optical zoom lens, face detection technology, and a camera station for charging, image transfer, and printing. The specifications of this camera just don’t quite stand up to those of the Pentax Optio A30, with a rather small 1.8-inch LCD screen with a mere 118,000 pixels. The A30's external interface is simpler and better designed. Similar features to the A30 include manual control of ISO, metering modes, exposure compensation, white balance, and a surprisingly long shutter speed of up to 15 seconds. The maximum aperture is f/3.2 and the ISO 1600 maximum isn’t quite the ISO 3200 of the A30. There is a large number of photo effects and the handful of preset shooting modes keep this camera in the same company as the A30. In the end, the A30's more impressive features and specifications make the camera a more tempting option. Panasonic Lumix DMC-TZ3 – The 7.2-megapixel TZ3 has an impressive 10x optical zoom with MEGA optical image stabilization. This camera has a number of manual control settings, including white balance, ISO up to 3200 in High Sensitivity mode, exposure compensation, backlight compensation, auto bracketing, metering, shutter, and aperture. However, it doesn’t come equipped with a manual focus control. Other features of note include five autofocus modes, standard color effects settings, full resolution Movie mode at 30 or 10 fps, as well as a unique 16:9 feature for 848 x 480 aspect ratio at either 10 or 30 fps. This model by Panasonic also has Burst mode, 12.7 MB of internal memory, and a large 3-inch LCD screen with 230,000 pixels. It is available in blue, black, or silver and is priced at $349.95 through Panasonic’s website. The TZ3 was also fields ahead in terms of performance, delivering some of the highest image quality scores we've seen on any point-and-shoot camera. Sony Cyber-shot DSC-N2 – This stylish and impressively slender digital camera by Sony was originally priced at $399.99 but has dropped in price to $349.99, and can be found through online retailers for less. This 10.1-megapixel camera has a 3x optical zoom lens, touch screen operations, still and video capture modes, and a 3-inch LCD screen. The camera has 25 MB of internal memory and accepts proprietary Sony memory cards and lithium-ion batteries. Other features include a free AF setting, D-Range control to compensate for washout, and ISO sensitivity up to 1600. Unfortunately for the manual control enthusiast, this stylish camera doesn’t include full manual control over white balance, aperture, or focus. Manual controls include exposure compensation, ISO from 100 to 1600, and shutter speed. Considering the price of this camera, the lack of controls makes it an unlikely option for photographers looking for more flexibility beyond automated modes. Who It’s For Point-and-Shooters – With a simplified Shooting mode and a host of Preset modes to select from, the point-and-shoot photographer should feel comfortable using the Pentax Optio A30. Budget Consumers – This isn’t really a camera the budget consumer is likely to consider, particularly since there is an abundance of sub-$200 cameras on the market today. Manufacturers like Panasonic are even equipping point-and-shoot cameras with formerly unique features like optical image stabilization for less than $200. Gadget Freaks – Although face recognition AF and AE and mechanical image stabilization are appealing, practical features, the Pentax Optio A30 doesn’t boast a set of gaudy controls or features that are going to turn heads and cause whiplash. Manual Control Freaks – The manual control freak will find the wealth of options included on this camera to be rather appealing, with full adjustment of focus, white balance, ISO, shutter speed, aperture, and metering. Pros/Serious Hobbyists – There are enough options and features to help this camera make its way into a pro's travel bag, however, the A30's image quality just isn't strong enough for this constituency. [page title="Conclusion"]
Conclusion The Pentax Optio A30 is a moderately priced point-and-shoot, with an initial MSRP of $349.95. Its clean and concise design, aluminum alloy body, and wealth of features and manual controls make it a worthwhile consideration for a range of users. The Pentax Optio A30 has a 10-megapixel CCD with Sensor Shift Shake Reduction, and carries two additional digital stabilization shooting modes, one for still images and one for videos. The camera has a 2.5-inch LCD with 232,000-pixel resolution, 3x optical zoom lens, and a face recognition system for both autofocus and auto exposure. A full host of manual controls allow for control over metering, exposure compensation, ISO, white balance, aperture, and shutter speed, although with mixed, and sometimes sluggish, results. The camera’s LCD tends to solarize and the substandard software program only allows users to make the most basic of edits. The A30's true shortcomings however, are in its performance. With inaccurate colors, high noise levels, limited dynamic range, and terrible video quality, this camera isn't worth the $350 price tag. Sample Photos Click to view the high-resolution image.
[page title="Photo Gallery" url="Pentax-Optio-A30-Photo-Gallery"] [page title="Specs / Ratings"] Specs Table
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