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E-mount Lenses for Infrared (IR) on NEX cameras

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Barrin View Drop Down
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Joined: 01 June 2016
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Posts: 157 		Post Options Post Options   Quote Barrin Quote  Post ReplyReply Direct Link To This Post Posted: 08 June 2020 at 17:05
Just managed to have some shots with my newly converted nex camera and my lovely 24/1.8 zeiss.
No hotspot at the moment with a 720 nm filter mounted on it.
I wait for the filter adapter to test also my sigma 60.
I will update with more info
Sony A6000|Zony 24/1.8|Sigma 60/2.8

3xi|M35-70/4|M100-200/4.5

Olympus Trip 35
 



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Barrin View Drop Down
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Joined: 01 June 2016
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Posts: 157 		Post Options Post Options   Quote Barrin Quote  Post ReplyReply Direct Link To This Post Posted: 21 June 2020 at 06:31
Here's the update:
Sony Zeiss 24/1.8: no hotspot both at 720 & 590 nm with my full spectrum Nex 3n.

Sigma 60/2.8: no hotspot both at 720 & 590 nm with my full spectrum Nex 3n.

I can also confirm nice operation of sigma 30 2.8. This sigma trio ( together with the 19 I read performs well too) appears to be terrific in IR at a really appealing price!
Sony A6000|Zony 24/1.8|Sigma 60/2.8

3xi|M35-70/4|M100-200/4.5

Olympus Trip 35
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Petrochemist View Drop Down
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Joined: 21 December 2020
Country: United Kingdom
Location: Essex
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Posts: 55 		Post Options Post Options   Quote Petrochemist Quote  Post ReplyReply Direct Link To This Post Posted: 15 March 2021 at 14:04
Most of my IR is shot on adapted lenses using a converted A7ii, but I have used the FE28-70 F3.5-5.6 OSS a fair bit too. Not spotted any hot spot issues on that one

I've also taken a few shots with my Samyang 14mm/2.8 ED AS IF with no major issues apparent. My copy is quite a long way out on focusing distances (even when just shooting visual light) so I can't gauge if focus shift might cause difficulties.

I won't try to advise on the adapted lenses
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nurWolfgang View Drop Down
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Joined: 07 November 2021
Country: Germany
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Posts: 26 		Post Options Post Options   Quote nurWolfgang Quote  Post ReplyReply Direct Link To This Post Posted: 10 January 2022 at 20:09
Hello

I use a converted Sony A7 M2
I found this web page https://www.edwardnoble.com/hotspots
I tested some of the lenses mentioned there by my self and can support the ratings according to my own testing
I have tested by myself the Sony Zeiss 55 f1,8 , no Hotspot
The Tamron 28-75 has in, some light conditions, hot spots and more by stopping down.
I tested some of the old Konica manual Glas and can support the good performance.
In the moment I use mainly the Minolta 28-85mm works grate

During this year I plan to test more of my old lenses, keep you updated.

Regards

Wolfgang

Here another database https://kolarivision.com/articles/lens-hotspot-list/
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Tricky01 View Drop Down
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Posts: 3187 		Post Options Post Options   Quote Tricky01 Quote  Post ReplyReply Direct Link To This Post Posted: 12 January 2022 at 22:14
I can add two:

Laowa 12mm f2.8 - horrible hotspot from f5.6. Wide open & f4 not too bad but suffers from Vignette

Sony 16-35 f4 - not hotspot I can see in my images all shot between f4 and f9, growing from f11

Edited by Tricky01 - 25 March 2022 at 12:38
web
A9, A7Riii, A7R (full spectrum) 12f2.8, 15f2, 16-35f4, tam28-200, 35f1.8, 50 1.8, 85f1.8, 90f2.8, 135GM, 100-400GM, 200-600G, 1.4xTC // A: Sig 90f2.8 & 180f3.5
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nurWolfgang View Drop Down
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Joined: 07 November 2021
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Posts: 26 		Post Options Post Options   Quote nurWolfgang Quote  Post ReplyReply Direct Link To This Post Posted: 24 March 2022 at 18:27
Hello

Just saw this video were it states that the Samyang 24-70 F2.8 FE is a good IR performer
At 11 min 10 sec. https://www.youtube.com/watch?v=9PdgT6VlWb0

Regards

Wolfgang
 



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