Lens for my Canon T3i
Oct 8, 2012 10:56:49 #
Tom Iskiyan
Loc: Highlands Ranch, Colorado
Thanks for your research. I think you and I are on the same page. However, it is somewhat disappointing to hear what you had to say. I don't understand what chromatic abrasion is, but will do some research in order to gain an understanding.
As a side note, before I purchased the camera, I read numerous evaluations of the T3i in various camera magazines. They all rated the sharpness of the T3i as very good. Do you have an opinion of these types of evaluations that appear in the typical photo magazines?
Would you suggest I go to one of the Sony cameras?
Thanks for your input.
As a side note, before I purchased the camera, I read numerous evaluations of the T3i in various camera magazines. They all rated the sharpness of the T3i as very good. Do you have an opinion of these types of evaluations that appear in the typical photo magazines?
Would you suggest I go to one of the Sony cameras?
Thanks for your input.
Oct 8, 2012 11:15:03 #
photogator are you having any chromatic aberration problems with the t3i as mentioned by clicker 2014 and if so with what lenses? I was thinking about purchasing the t3i and with the kit lenses 18-55mm and 55-250mm. Now i am hesitant? I really do not wish to buy the t4i as it is not in my budget.? A member of my photo club who wins many photo contests uses the t2i with great results.
Oct 8, 2012 11:19:05 #
Tom Iskiyan wrote:
Thanks for your research. I think you and I are o... (show quote)
These are a couple of pictures I took. One our trip to England. Check out the edges of the pillars, and my husband's white t-shirt. etc. The reds, blacks, etc. show up quite well/badly.
I usually read a lot of reviews and go with the majority. That is why I purchased the T2i, but once I discovered the problem and understood CA I googled "Canon T2i Chromatic Abrasion" and found out about this model's problem and why I was having such issues.
I have not done enough reading regarding Sony to give any advice on it. (although we do have a Sony's point and shoot which is a good camera for carrying around in the car for "just in case shots").
Hope this helped some. Again I would go try your lenses on other cameras. A reputable dealer will let you take some shots and compare as they want your business and repeat business. Take them back to your computer and blow them up to 100% to see if you are happy.
Best of luck Tom
Clicker.
check shirt and hat
check top of picture and edge of pillars
Oct 8, 2012 11:31:03 #
Tom Iskiyan
Loc: Highlands Ranch, Colorado
Not sure how to respond to you. Until recently I was pleased with my T3i. I too have the 18-55mm and the 55-250mm lenses. I knew that they were inexpensive lenses and felt that the sharpness of my pictures would improve if I moved up to a more expensive lens. However, just the opposite was true. The more expensive lenses gave me a less sharp picture.??? Very confused.
Oct 8, 2012 11:32:33 #
Tom Iskiyan
Loc: Highlands Ranch, Colorado
Thanks for the photos. As I think more about my problem, I believe my issue is more with the lack of sharp focus rather than chromatic aberation.
Oct 8, 2012 11:43:14 #
Clicker, your problem is the kit lens, not the camera body. I get CA on my 7D using an 18-55 too. CA can easily be removed with the new version of Camera Raw that comes with CS6 or LR4.
Tom, you problem seems to be the kit lens too but the 10-22 lens I don't know about. When you tested those wide angle lenses did you try them at various f-stops? Many lenses perform better in middle f-stops instead of wide open and stopped down past f22. There's a big difference in focal length between an 18-55 and those wide angle lenses. The wide angle lenses aren't really designed for portraits or close-ups. They are more for landscapes and architecture. If you did careful tests of the wide angle lenses and your 18-55 lens and still believe that they are all soft, you may want to send your camera in to Canon to see if there's anything they can do for you.
I used my T2i with my 10-22 and it's awesome. I use the same lens on my 7D and it works fine too. You need to realize that these lenses will have some distortion when used at 10mm focal length.
Tom, you problem seems to be the kit lens too but the 10-22 lens I don't know about. When you tested those wide angle lenses did you try them at various f-stops? Many lenses perform better in middle f-stops instead of wide open and stopped down past f22. There's a big difference in focal length between an 18-55 and those wide angle lenses. The wide angle lenses aren't really designed for portraits or close-ups. They are more for landscapes and architecture. If you did careful tests of the wide angle lenses and your 18-55 lens and still believe that they are all soft, you may want to send your camera in to Canon to see if there's anything they can do for you.
I used my T2i with my 10-22 and it's awesome. I use the same lens on my 7D and it works fine too. You need to realize that these lenses will have some distortion when used at 10mm focal length.
Oct 8, 2012 12:11:26 #
I would like nothing better than to agree with you, but it is in all my lenses but not on my husband's camera. Even my 150 Macro lens has it showing up :-(... It is also in all areas of the zoom. I have tried different ways of correcting it on the computer with Elements 9's raw converter, but it does not do the job... sigh... I don't feel I should have to put all my pictures through CA correction. I am going to take my lenses to a good dealer and try them out on different camers and see if it improves. If not then I will certainly be re-thinking my problem. Thanks for getting back to me jeep daddy! Appreciated.
jeep_daddy wrote:
Clicker, your problem is the kit lens, not the cam... (show quote)
Oct 8, 2012 13:06:09 #
gordnanaimo wrote:
check your sharpness and focus settings on your camera. These only work if shooting in jpeg. they are unaffected in raw. Your camera may have issues and check the alignment of your sensor
Could you please explain the "These only work if shooting in jpeg. they are unaffected in raw." ? Not sure I understand. Thanks.
Oct 8, 2012 13:40:33 #
Blurryeyed wrote:
quote=Tom Iskiyan Thanks for replying. I too was... (show quote)
I agree. I bought my 10-22 when I still had my EOS 50D. I sold the 50D and traded up to a 7D and now use the 10-22 on it. The results are usually tack sharp as long as I do my part. The EF-S 10-22mm could almost be an "L" lens.
Oct 8, 2012 15:12:18 #
Just tuned in and I must say I am astounded at the number of users reporting problems with sharpness with the T3i. I use one and also a T1i and have never had a sharpness problem with any of my four lenses: the kit EFS 18-55, my newest EFS 18-135 (love it), an EFS 55-250 and a 100 macro. I'm attaching the cover of a wedding book I just published. I think the image is perfect - and that's after photoshopping to create the cover design. Incidentally, my sister and I shared this photo shoot and she uses a Mark III. You cannot tell which shots were shot with that and which with the T3i so that convinces me I don't need to spend three times as much for a camera! Just how sharp is sharp?
Oct 8, 2012 15:40:03 #
Debann thanks for your validation on not having any sharpness problems with images produced by the t3i and the kit lenses! The t3i is my camera in the near future.
Oct 8, 2012 16:54:00 #
Clicker2014 wrote:
I would like nothing better than to agree with you... (show quote)
Then there's probably an alignment problem with your sensor. Canon will perform a "Clean and Check" for $30. If it's still under warranty and they discover a problem with the body then they will not charge you the $30 and fix it free. If out of warranty and they discover a problem with the camera they charge a flat rate for 'any' repairs needed and give it back in like new condition minus the $30 C&C charge. (even one that's been dropped and has major cracks)
Of course, I have no idea what lenses you've tested your camera with or if you've tried a professional L series lens or not. I also don't know how precise or how controlled your tests were so that can make a huge difference. And experience level, focus method, light, camera shake all factor into your tests. I recently sold my T2i for $575 with the kit 18-135mm lens so you might think about going that route as well. Good luck.
Oct 8, 2012 17:07:17 #
Agree with the above:
Send your T3i in for servicing - warranty or otherwise.
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The lenses your camera shop people suggested were in no-way replacements for your Kit 18-55. But - they should BOTH have given you sharp images. That they didn't suggests a sensor OR a focusing problem in the camera.
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Once you get the focus issues resolved - my recommendation would be to consider the Canon 15-85 paired with the 70-300 L for your sharper work and the Canon 18-200 as a general travel walk-around. Then again - once your camera is fixed - you may decide to stick with your 18-55 ?
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Good luck!
Send your T3i in for servicing - warranty or otherwise.
-
The lenses your camera shop people suggested were in no-way replacements for your Kit 18-55. But - they should BOTH have given you sharp images. That they didn't suggests a sensor OR a focusing problem in the camera.
-
Once you get the focus issues resolved - my recommendation would be to consider the Canon 15-85 paired with the 70-300 L for your sharper work and the Canon 18-200 as a general travel walk-around. Then again - once your camera is fixed - you may decide to stick with your 18-55 ?
-
Good luck!
Oct 8, 2012 17:20:47 #
debann just a ? on lens selection? I like to take landscape photos etc. Would the 18-135 mm(for flowers&other closeups etc) and the 70-300 kit lens (for landscapes,some birds) be appropriate for me. I will continue to use my canon sx40 for the long shots of birds,animals etc. I would like to purchase the 18-270 tamron zoom, and just t3i body ,but budget consstraints prevent this. Thanks for your advice!
Oct 8, 2012 20:19:51 #
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