a tough test

Started 3 months ago | Discussions thread
jshen808
jshen808 Forum Pro • Posts: 15,179
Re: a tough test

Bassy wrote:

tell me about decentering i dont know much about that matter

what are the things to look out for and how to over come the problem

Oops, the example I gave (now deleted) was not a good one.

Can read more about the lens "decentering" at the below links.

https://photographylife.com/what-is-a-decentered-lens

https://www.lensrentals.com/blog/2012/05/testing-for-a-decentered-lens-an-old-technique-gets-a-makeover/

https://photo.stackexchange.com/questions/11537/what-is-decentering

..

How to remedy?

Basically to exchange for another copy, then test again.

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For larger sensor cameras, they say can use f/8 or f/16 or even f/22, and that will increase the dept-of-field, and minimize the effects of lens "decentering".

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Cheers!

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