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What are your thoughts on this wide angle lens lens?
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PostPosted: Mon Nov 20, 2023 3:16 pm    Post subject: Reply with quote
calvin83 wrote:

Here are two set of photo take at wide open and stopped down 1.5 stop. I use custom white balance to keep the result consistent.

1. wide open

1. stopped down 1.5 stop

Honestly, I don't see there is significant improvement in the corners. So, there is no need to stop it down further. Wink


I do see quite signifcant improvements when stopping down - especially since the images you have posted are only 10.5 MP!

Here:



S


PostPosted: Mon Nov 20, 2023 3:27 pm    Post subject: Reply with quote
stevemark wrote:

Here:



S

My definition of corners are the extreme corners. Laugh 1

Last edited by calvin83 on Mon Nov 20, 2023 3:37 pm; edited 2 times in total


PostPosted: Mon Nov 20, 2023 3:35 pm    Post subject: Reply with quote
calvin83 wrote:

My definition of corners is the extreme corners. Laugh 1


No comment Laugh 1

That said, the above improvements when stopping down look quite similar to what I see e. g. in a Minolta MC 1.8/35mm ...

S


PostPosted: Mon Nov 20, 2023 3:38 pm    Post subject: Reply with quote
stevemark wrote:
calvin83 wrote:

My definition of corners is the extreme corners. Laugh 1


No comment Laugh 1

That said, the above improvements when stopping down look quite similar to what I see e. g. in a Minolta MC 1.8/35mm ...

S

Yes. The mid-field does improve with stopping down.

Good to know the MC 1.8/35mm behave this way.



PostPosted: Sun Jan 21, 2024 2:12 pm    Post subject: Reply with quote
It helps stopping down for sure. Vignetting and sharpness is a lot better, but the lens suffers from quite a bit of CA.


PostPosted: Sun Jan 21, 2024 2:17 pm    Post subject: Reply with quote
Nordentro wrote:
It helps stopping down for sure. Vignetting and sharpness is a lot better, but the lens suffers from quite a bit of CA.

Yes. CA is there which i think it helps to get the vintage feel. Laugh 1
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