Saturday, June 13, 2009

Canon SD1200 IS Blurry Images

If I were superstitious, I would stop doing reviews of products.

Twice now I've praised technology products only to have them turn around and bite me for it. First it was the Apple MacBook Pro (MB470LL/A) that can't run Vista effectively even though Apple claims it is supported. Now it's the Canon PowerShot, which -- at least in the particular cameras I have purchased recently -- has lost its sharp image quality.

I've been without a functioning camera for about 1 1/2 frustrating months now. I bought an SD1100 IS last year that worked fine, but unfortunately I left it at a stop on the way to Santa Fe in January, and since I didn't want to be without, I promptly bought another one at a Best Buy on the way.

This second SD1100 began to exhibit problems, so I sent it in for repair. It came back worse! I sent it back with sample photos thinking it had been repaired incorrectly, and they wanted me to pay this time. Instead of spending $90 on a camera that I thought might be a lemon, and wanting to get a working camera in my hands, I spent $170$188* on a brand new SD1200 IS. It was just as bad -- right out of the box! I tried a second one from Wal-Mart because of their lenient return policy. Same problem! Ugh. I still have the same lousy SD1100 and no way to fix it effectively, when new lenses and cameras are just as bad.

At this point I can only conclude that either A) Canon has relaxed its standards or B) they are producing bad lenses and don't realize it yet. I am going to write them with the serial numbers in case they can track down a problem. Until they improve their output I'm not going to buy another PowerShot.

I hope nobody read my praise of these cameras, bought one, and is now having similar trouble. I sympathize! It's been very frustrating.

This seems like further evidence of the economic entropy I wrote about.

Meanwhile, I'm looking at the Panasonic Lumix series, whose images have a different look (more overall noise vs. Canon's emphasis on edge sharpness), however many of the samples I see on Steve's Digicams have good sharpness over the entire image area, which is important to me. Steve's has test images of each camera, which is a huge help in evaluating products in the electronics market segment, where return policies can be tricky or costly due to restocking fees (although I usually avoid merchants that have such fees). Unfortunately, their test images from both the SD1100 and SD1200 are better than what I'm seeing on mine.

UPDATE: Here is a sample to illustrate. These crops were taken from the same photo using a brand-new SD1200 IS (similar but less-pronounced blurriness was present in the second SD1200 I tested). The left side is the center of the photo, the right is the upper right corner of the same photo. It was taken in manual mode without any zoom (i.e. wide angle). Neither portion was magnified or reduced and they are at the original resolution; I simply copied the sections and placed them side by side.



UPDATE 2: Although this is not what I would consider to be a 100% scientific test, both objects were in approximately the same focal plane, and no such discrepancy existed on my older PowerShot cameras. I know this line of cameras and what worked before, and does not work now. Because the phenomenon shifts, and varies in intensity, it's also a bit tough to get consistent tests. For example yesterday I had an image where the top was clear (both background and foreground) but the bottom half was blurry regardless of distance of the object from the camera. Go figure.

One difference in these problem cameras is they all have image stabilization (hence the "IS" in the name). IS compensates for hand movements, and I'm wondering if it's involved. However, I've turned IS off and get the same results. It still could be something loose. No idea. Maybe I'll try to locate an older model PowerShot that does not have IS.

Anyway, I've done about all I can do until I gather my materials and contact Canon.

Meanwhile, caveat emptor.

*Correction: The SD1200 price was $188, not $170.

5 comments:

  1. "I spent $170 on a brand new SD1200 IS. It was just as bad -- right out of the box! "

    What do you mean by this? Is it an issue with blurryness, sharpness, colors, speed, autofocus, exposure, etc...? It doesn't help when you just say it's bad.

    Did you use full auto mode or some other scene mode? Full auto is the dumb mode which works very poorly. It continually autofocuses and makes the exposure adjustments for you. I have an SD1200 and I mainly use Program mode. Also for shooting outdoors you need to use at least -1/3 exposure compensation or else your highlights will be clipped (i.e. bright areas will be totally white).

    And by the way where can you get an SD1200 for that low a price?

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  2. The problem is blurriness at the edges. With the center of the image focused and sharp, I've seen blurriness extend up to 1/3 into the image area from the edge. It was worst without using zoom. If I zoom in I seem to be able to eliminate it somewhat, I assume because it's using a different part of the lens. See image sample above under "UPDATE".

    I was mistaken about the price, it was via Amazon and it was $188.00 plus shipping from Barneys Electronics. I've been obsessing over what replacement camera to buy for weeks, I must have been thinking of something else.

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  3. To test lens sharpness it might be practical to just shoot a fairly flat object (i.e. a brick wall or poster). This way you can clearly see the difference between center sharpness versus edge sharpness. Sometimes shooting a landscape you might have different object in focus due to their distance from the point in which the camera focused upon. This might be the case in the pictures; or it might be that your lens is not very sharp at the edges.

    Edge bluriness is quite common in most cameras, although the magnitude of this determines the lens quality. Very few lens have sharp edges. You certainly won't find it in the point and shoot cameras.

    Your best option is to return the camera with the poor lens.

    ReplyDelete
  4. Sorry, just a final comment.

    I did a lens test on my two Canon PowerShot cameras, one is the A590 and the other SD1200.

    You may be right about blurry edges on the SD1200. My tests also confirmed that it's not as sharp as the A590 which has excellent sharpness across the lens even extending to the edges.

    http://img188.imageshack.us/img188/746/edgesharpnesstest.jpg

    Imagine that.. the A590 costs considerably less but has better sharpness and I would also add contrast than the SD1200.

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  5. Canon SD1200 is my favourite camera. Thank you for your review.

    ReplyDelete

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