Showing posts with label foveon. Show all posts
Showing posts with label foveon. Show all posts

Sigma SD14 14MP Digital SLR Camera (Body Only) Review

Sigma SD14 14MP Digital SLR Camera (Body Only)
Average Reviews:

(More customer reviews)
The SD10 had problems. The battery charge system was just weird. The camera was not up to the hype when light was poor. But the images with good light were stunning. So it was with some angst, sustained by a delayed product release, that I opened my camera SD14. Very early on I knew I had a problem in that the camera hung... motion? But I got off some really spectacular images before sending it to NY repairs. They got it back quickly. I suspect something loose.
Well the images are simply wonderful. Just so you know, I have cameras at 5 & 6 times the price considered high end professional. I can get lots more pixels, but the color quality is not better.
The real test was low light. All the digital cameras fail in low light. So just a matter of how bad. OK, something is new here. This camera is far better in dim light than the SD10. When it starts to fail to low light the images become blotchy - like camoflage - rather than sandy as the GRGB cameras tend.
The SD14 X3F RAW images do well in Adobe's new Lightroom, and interestingly with the many controls for image modification in that program, there are none that set this camera aside (for punishment for being different).
The SD10 used a 1 GByte card but did not take larger. I tested the SD14 on 1 Gig (mechanical IBM type) and on 2 Gig, and 4 Gig, and 8 Gig CFII cards. Though, beware, some cards do badly with certain cameras across the board. So, I cannot say that ALL CFII's are OK. But I was able to find cards that worked a large range of memory capacity.
The camera saves images as RAW or JPEG. You can select two "color spaces", sRGB or AdobeRGB. I found that odd. Why not a 16 bit option? I suspect that is simply understood for RAW.
The booklet that comes with the camera may be the clearest such booklet of any camera. There were a few minor areas where referring the user to other sources seemed lazy(C1----v C2----v C3----v for camera strobes might be obvious to those who have these but ought to be explained to those who don't and maybe might want to).
Also the SD14 can shoot "tethered" - a huge fact that gets barely any mention other than an arrow pointing at the port. Those who do that, know, but maybe some need to learn how?
The camera body is nicely shaped, the controls are very logical, and shooting is easy.
There is something about the color. The SD10 drove me nuts because I had to charge batteries in shifts (they didn't all fit in the charger at once... grrrr). I almost dismissed this camera from that experience alone. The low light limits of the SD10 were also hard to take. But, that color. Seems even better in the SD14. It is not like other cameras. Just isn't. Very pleasing rich deep textural color.
So, down side? Well Sigma is not a magnet for lenses made by other manufacturers. So you will probably be a Sigma all the way person. But the Sigma lenses I used were quite good and cost way way less than other brands. There is a specific flash kind for the flash shoe. So, maybe your current flash might not work? The built-in flash, does what built in flashes do.
The SD14 battery system is quite nice. There is a built-in dust protector to assist lens swaps - very nice.
Want to do very high end photography with a wide array of lenses without going broke? Look at this model.

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Capture the beauty of the world around you with the Sigma SD14 14 Megapixel Digital SLR Camera. The image sensor captures pure, rich light efficiently and gives the SD14 its high resolution and richly graduated tones. The mirror lock-up mechanism raises the mirror thus preventing vibration when the shutter is released. This prevents camera shake, and is especially effective for macro photography. FOVEON X3 Direct Image Sensor (CMOS) - 20.7mm x 13.8mm - approx. 7-12x larger than the image sensors used in ordinary compact digital cameras Lens Mount - SIGMA SA bayonet mount Compatible Lenses - SIGMA SA mount interchangeable lenses Angle of View - Equivalent to approx 1.7x the focal length of the lens for 35mm cameras Manual & Auto Focus Fast & precise focusing with 5-point AF Shutter Speed - 1/4000 - 30 sec. + bulb (up to 30 sec.) Image Sensor Dust Protector High speed continuous shooting at 3 frames per second 3 metering modes - 8-segment Evaluative Metering, Center Area Metering, Center Weighted Average Metering Built-in Flash Hot shoe (contact X synchronization at 1/180 sec. or less, with dedicated flash linking contact) Storage (Not included) - CompactFlash (Type I/II), Microdrive (FAT32 compatible) Recording Mode - Lossless compression RAW data (12-bit), JPEG ISO Sensitivity - Equivalent to ISO 100, 200, 400, 800, 1600 USB 2.0, Video Out (NTSC/PAL) Li-ion Battery BP-21, Battery Charger BC-21, Optional AC Adapter White Balance - Auto, Sunlight, Shade, Overcast, Incandescent, Fluorescent, Flash, Custom Exposure - Program AE (Program Shift is possible), Shutter Priority AE, Aperture Priority AE, Manual 144mm/5.7 W 107.3mm/4.2 H 80.5mm/2 D & 700g/24.7 oz (without batteries)

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Sigma 17-70mm f/2.8-4 DC ELD OS HSM Macro Lens for Sigma Mount Digital SLR Cameras Review

Sigma 17-70mm f/2.8-4 DC ELD OS HSM Macro Lens for Sigma Mount Digital SLR Cameras
Average Reviews:

(More customer reviews)
I received the Sigma 17-70 2.8-4 OS HSM from Amazon five days ago. I have taken about 400 shots with this lens, including landscapes, indoor family gatherings with flash, and a sporting event in a large, well-lit indoor arena. It seems to me that this lens works as advertised. I don't see focus problems with this lens in either the AI Servo to AI Focus modes on my Canon XSi. The XSi exposure metering seems to work fine with the Sigma 17-70, and I cannot see anything wrong with color accuracy. The finish, appearance, and feel of the lens are pleasing. I like it, and it certainly seems to be a good value given its relatively low cost vs. function. I have awarded four stars in my rating only because of my limited experience with this lens. If this lens continues to work as it has so far, I would award a fifth star.
Photography is my hobby, not my profession, but I carry my camera to work and shoot nearly every day. I cannot afford high-end camera equipment, so I make do with what I can afford. Even so, I have had rewarding successes and lots of fun with my hobby. My photos have been published in magazines, textbooks, brochures, large-format calendars, and web sites. They have been framed and hung on walls in office suites, sports arenas, and homes.
I have used Sigma lens for the past ten years, and currently own four Sigma lens for my Canon XSi. Sigma lens are cheap, they are most often lightweight as compared to Canon lens, and they work acceptably well. I am familiar with the "you get what you pay for" concept, and I understand that sometimes there are issues with Sigma lens. I can see why professionals need sturdy equipment, but overall Sigma has provided me with a successful and cost-effective way to observe, record, and enjoy my surroundings.


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Sigma Corporation adds unique, anti-shake technology to award-winning 17-70mm lens Sigma announced the new Sigma 17-70mm F2.8-4 DC MACRO OS HSM. This large aperture standard zoom lens offers an aperture of F2.8 at the 17mm focal length and is ideal for many situations such as portraits, sports, macro and general photographyThe OS (Optical Stabilizer) function offers the use of shutter speeds approximately 4 stops slower than would otherwise be possible.The maximum aperture of F2.8 makes this lens ideal for hand held photography as well as producing an attractive background blur and high speed auto focus.This lens has a minimum focusing distance of 22cm (8.7..) throughout the entire zoom range and maximum magnification ratio of 1:2.7, making it ideal for close-up photography. It is possible to focus as close as approximately 4.7cm from the tip of the lens to the subject making this lens particularly useful for close-up photography.Three aspherical lenses and one ELD (Extraordinary Low Dispersion) glass element provide excellent correction for all types of aberrations. High image quality is assured throughout the entire zoom range. The Super Multi-Layer Coating reduces flare and ghosting and provides high contrast images.The incorporation of HSM (Hyper Sonic Motor) ensures a quiet and high speed AF. This lens has a rounded 7 blade diaphragm which creates an attractive blur to the out of focus areas of the image

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Sigma DP1 14MP Digital Camera Review

Sigma DP1 14MP Digital Camera
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I am a professional photographer using Nikon's D300 and D3 for portraiture and weddings. These are both super cameras that have been a boon to my business. However, like all modern SLRs they are big, heavy, noisy and the automation works for most everything. I came to photography when cameras were much simpler and actually required a knowledge of how a camera works. I am glad I did, as to use the DP1 to its full advantage you must know what you are doing.
Photography is a passion even in my off time and I wanted something light, small, and quiet for the candids of life that I would always have with me. The poor image quality, control, and responsiveness of compacts was not what I was looking for.I briefly considered the M8 but for a non-money making "fun" camera it was way too much to spend. The DP1 filled the bill for me.
Why? You will read complaints about slowness. If you are a point and shooter, that is correct, and you should avoid this camera.
However, if you are a photographer read on. During my research I read an article written by a Leica user that said he was always ready to shoot by having his camera prefocused and ready to go. That is the best way to use the DP1 also. Use manual focus and the correct aperture for your expected depth of focus needs. Unlike any other compact camera you can both turn off the lcd and the sleep mode and walk around with the camera ready to shot in an instant. Of course with the lcd off you will need the optional viewfinder.
I normally shoot in A mode and the controls allow fast changes to aperture and exposure compensation, something else no other compact camera does.
The image quality at ISO 100 is astounding and loses some quality as it goes up to ISO 800. 800 is somewhat disappointing as color saturation drops off dramatically.
Yes it is slow for point and shooters and has a lousy lcd but if that is sacrifices Sigma had to make for a superior image from a compact camera at this price point its fine with me. I am having a blast with this camera as it opens up a whole new world of image possibilities. I highly recommend it to anyone who has a photography style that suits a M8 but does not want to spend a fortune for the tool to do it with. Its not a M8 of course but a bargain in comparison.

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The DP1 is a completely new type of camera offering the full specs and high image quality of a DSLR in the body of a compact camera. It is powered by the 14-megapixel Foveon X3 direct-image-sensor, which can reproduce high-definition images rich in gradation and impressive three-dimensional detail.It is possible to record images in RAW or the widely used JPEG in four resolution modes. It offers five Exposure modes and three Metering modes as well as being equipped with a built-in flash with the Guide Number of 6, hot shoe, neck strap and 2.5-inch TFT color LCD monitor with approximately 230,000 pixels.The DP1 has the high resolution and functionality of an SLR, plus adaptability in terms of accessories, all built into a small body.

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