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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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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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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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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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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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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, 200-600G, 1.4xTC // A: Sig 90f2.8
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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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Post Options Post Options   Quote nurWolfgang Quote  Post ReplyReply Direct Link To This Post Posted: 02 July 2023 at 18:19
Hello

I tested the relatively new Tamron 28-200mm for Sony E Mount
It is a very good lens for IR,
I could not recognize any hotspot on no focal length or aperture

Regards

Wolfgang
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Post Options Post Options   Quote nurWolfgang Quote  Post ReplyReply Direct Link To This Post Posted: 08 July 2023 at 19:00
Hello

I have tested the Tamron 40-400 with very good results
I have tested 680, 720 and 850 nm
From 50 - 400 mm by F 4,5 - 22 with full sunlight from the back what is for my experience the most difficult situation

Up to f 14 nothing than it starts with a very soft hot spot by the 680 and 720 nm could not detect any hotspot up to f 22 with 850 nm
The hot spots can be corrected in post

Regards

Wolfgang
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Phil Wood View Drop Down
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Post Options Post Options   Quote Phil Wood Quote  Post ReplyReply Direct Link To This Post Posted: 12 February 2024 at 15:51
Is there any problem using the LA-EA4 for IR photography? I am contemplating an IR converted NEX as an inexpensive intro to IR and have a lot of A-mount glass.
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neilt3 View Drop Down
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Post Options Post Options   Quote neilt3 Quote  Post ReplyReply Direct Link To This Post Posted: 12 February 2024 at 19:35
Originally posted by Phil Wood Phil Wood wrote:

Is there any problem using the LA-EA4 for IR photography? I am contemplating an IR converted NEX as an inexpensive intro to IR and have a lot of A-mount glass.


I don't think there should be a problem with the LA-EA4 as the mirror is at 45 degrees . Potentially it might even help .
It's the lenses that are the main problem for hot spots .

Is there any particular lenses that your planning on using ?
I have the LA-EA4 , a full spectrum NEX 6 & NEX 3 , an infrared NEX C3 , plus a load of Minolta A mount lenses and some Sony A mount lenses .
So I could probably try out your combinations while I'm away on holiday in a few weeks .

see my photostream on flickr;
http://www.flickr.com/photos/neilt3/
C & C welcome.
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Post Options Post Options   Quote Phil Wood Quote  Post ReplyReply Direct Link To This Post Posted: 15 February 2024 at 23:53
Originally posted by neilt3 neilt3 wrote:

Originally posted by Phil Wood Phil Wood wrote:

Is there any problem using the LA-EA4 for IR photography? I am contemplating an IR converted NEX as an inexpensive intro to IR and have a lot of A-mount glass.


I don't think there should be a problem with the LA-EA4 as the mirror is at 45 degrees . Potentially it might even help .
It's the lenses that are the main problem for hot spots .

Is there any particular lenses that your planning on using ?
I have the LA-EA4 , a full spectrum NEX 6 & NEX 3 , an infrared NEX C3 , plus a load of Minolta A mount lenses and some Sony A mount lenses .
So I could probably try out your combinations while I'm away on holiday in a few weeks .



Thanks Neil. I am an absolute novice when it comes to IR. I have no specific lens in mind - I have a great many of them. Off the top of my head perhaps the Sony CZ 16-80, Sony 16-50 SSM or the basic minolta primes (20/2.8, 24/2.8, 28/2, 35/2, 50/1.4/1.7/2.8/3.5, 85/1.4, 100/2.8 macro, and 135/2.8) - not that I'm expecting you take all those with you on your holiday.
Phil
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neilt3 View Drop Down
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Post Options Post Options   Quote neilt3 Quote  Post ReplyReply Direct Link To This Post Posted: 25 February 2024 at 23:10
Originally posted by Phil Wood Phil Wood wrote:



Thanks Neil. I am an absolute novice when it comes to IR. I have no specific lens in mind - I have a great many of them. Off the top of my head perhaps the Sony CZ 16-80, Sony 16-50 SSM or the basic minolta primes (20/2.8, 24/2.8, 28/2, 35/2, 50/1.4/1.7/2.8/3.5, 85/1.4, 100/2.8 macro, and 135/2.8) - not that I'm expecting you take all those with you on your holiday.
Phil


Out of those lenses , the only one I don't have is the 35mm f/2 , mines the f/1.4 version .
The 50mm f/1.4 and 100mm macro's I have are the Sony versions rather than the Minolta . I don't think this will make a difference to the outcome as its the optical formula that I think creates the hotspot , not the coatings of later lenses preventing it .

Have you seen this thread on A mount lenses for infrared ?
I haven't tried it myself but it does say the 16-80mm is a bad one .

Hopefully I should get chance to test them this week . With a bit of luck it will be sunny as this makes the hotshots more obvious than on overcast days .
I'll see how they behave wide open and probably at f/5.6 and f/8 .

I'll add my results to that thread , but the list in the OP hasn't been updated since 2013 !
Still the information will be there for anyone searching .

Depending on your style of shooting , the Sony 20mm f/2.8 pancake lens is very good .
Most of the ir shots taken on my NEX 3C are done with that lens , I would well recommend it .
It's a combination that slips in a pocket where otherwise you might not take the camera out with you .


Edited by neilt3 - 25 February 2024 at 23:15
see my photostream on flickr;
http://www.flickr.com/photos/neilt3/
C & C welcome.
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