Linked Questions
20 questions linked to/from How can I test a new lens to make sure it is operating correctly?
10
votes
3
answers
2k
views
Is my Canon EF-S 15-85mm IS USM lens defective or par for course?
I got the Canon EF-S 15-85mm IS USM this week after a lot of deliberation as an upgrade to my 18-55mm IS kit lens for my Canon 550D, and did some trial shots using it and found the images to be on the ...
- 4,645
10
votes
3
answers
449
views
What are the standard tests available to quantify lens parameters?
In some of the questions I have asked here, some of the terms frequently used to describe the difference in image quality between the cheaper lenses and the premium ones have been increased contrast, ...
- 4,645
-2
votes
3
answers
3k
views
Canon 70-200mm F4 L USM IS Focus Issues Photo All Soft?
Focus Issues
Bought myself a used Canon 70-200mm F4 L USM IS Lens but as yet I've not achieved a single Sharp image list of various settings tried attempts so far and still no joy very frustrating. I ...
12
votes
2
answers
5k
views
How can I/should I check the sharpness of my camera lens?
The sharpness of a lens is a major concern for most photographers. This might be because we are worried about a defect in the lens, a problem with our technique or a problem with the camera. Or we ...
- 8,287
11
votes
2
answers
3k
views
How can I determine if my Sigma 10-20mm lens copy is appropriately sharp and focusing right?
I just purchased a Sigma 10-20mm lens (Canon mount) and based on the reviews I was aware that many people receive copies of the lens that are soft or don't focus properly. I purchased from B&H, so ...
- 765
7
votes
2
answers
605
views
What to look for when testing a wide angle lens before buying?
I'm looking at buying a used wide angle lens (specifically Canon EF-S 10-22mm f/3.5-4.5 ) for a crop camera. The question What should one look for when buying a used lens? covers the basics when ...
- 3,196
5
votes
2
answers
2k
views
Is this the level of sharpness and detail I can expect from a Nikon D7000 and 18-105mm lens?
Being a newbie, I would like to have some comments on my current skill level and quality of my current equipment. I own a Nikon D7000 with 18-105. I am not very much satisfied with the quality of ...
- 1,786
3
votes
2
answers
4k
views
How to determine if a new lens is a subpar copy?
I have read some posts like the ones below about testing a lens to determine how well it performs optically. What I didn't see was anything on determining whether the lens performs as it should and is ...
- 1,207
2
votes
2
answers
463
views
Which should I buy as a starting prime lens, Canon 35mm f2 or Canon 50mm f1.4?
I am pretty new to photography. I have an APS-C camera, Canon 77D with a EF-S 18-135mm kit lens. I want a prime lens for shooting nice bokeh portraits along with street and day to day life photography ...
- 33
0
votes
2
answers
448
views
Image quality - related to camera or not? Blurry, artificially sharpened images
I bought a D90 camera recently which was well used with 67k shutter actuations.
I took some photos and this is the result:
On the left, you can see that the image looks blurry when zoomed into, ...
- 135
4
votes
1
answer
2k
views
Is the Quality Inconsistent on the Canon 24-70mm f/2.8 L MkI lens?
I'm considering buying a Canon 24-70 L Mk I.
There is one thing that scares me a bit, though: reading reviews around the intertubes it appears that a fair number of people had to send their copy back ...
- 163
1
vote
1
answer
581
views
Sigma 18-35mm f/1.8 rattling sound
Just bought it used and when I shake it it makes a rattling sound.
I know lenses with stabilization usually make that sound but this lens hasn't got that.
So, is it normal or is something wrong?
It ...
- 233
1
vote
1
answer
1k
views
dropped a new fuji x100s [duplicate]
I just got a new fuji x100s and dropped it on the sidewalk from pocket height (3 feet).
It has some scratches on bottom corners, but appears to be working ok. Is it possible that some internal ...
- 1,059
0
votes
1
answer
613
views
How to smoke test basic functionality of a D90 during buying
I think, many beginners want to buy his/her first digital camera. Can them follow some check list to understand that the product is working and working well, has not physical damages, dust and so on. ...
- 1,469
2
votes
0
answers
127
views
How to test used/second-hand lens? [duplicate]
Possible Duplicate:
What should one look for when buying a used lens?
I am going to buy second hand AF-S DX NIKKOR 18-200mm f/3.5-5.6G ED VR II. The price ...
- 876
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