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

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stavros78 View Drop Down
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Posts: 141 		Post Options Post Options   Quote stavros78 Quote  Post ReplyReply Direct Link To This Post Topic: E-mount Lenses for Infrared (IR) on NEX cameras
    Posted: 13 July 2015 at 20:58
Which lenses have you found work well for Infrared on modified or unmodified E-mount cameras?

Check here groovyone's post for A-mount lenses and cameras : Lenses and unmodified cameras for Infrared (IR)


E LENSES:

Sony 10-18mm F4 OSS                   mild hotspots starts at f5.6 @ 720nm

Sony E PZ 16-50mm F3.5-5.6 OSS        hotspot starts at f6.3

Sony 18-55mm F3.5-5.6 OSS             hot spot @18mm; hot spot gone @>20 , Thanks Micholand

Sony Carl Zeiss 16-70mm F4 ZA OSS     hotspot from f4 @ 720nm, no hotspot @ 590nm, Thanks gwevans

Sony 55-210mm F4.5-6.3 OSS            no hotspot

Samyang 12mm F2 NCS CS                hotspot from f2

Sony 16mm F2.8                        hot-spot starting at about f/5.6, Thanks Alex H

Sigma 30mm F2.8                       very good results, Thanks eagleeye

Sony 50mm F1.8 OSS                    hotspot starts at f12


FE LENSES:

Sony Carl Zeiss 16-35mm F4 OSS        mild hotspots starts at f8

Sony Carl Zeiss 35mm F2.8 ZA          ok until F4, then distinct hot spot from F5.6 onwards w/ IR720
 
Sony Carl Zeiss 55mm F1.8 ZA          not noticed any particular issues,  Thanks nandbytes

Samyang AF 45mm F1.8 FE               perfectly fine; no hotspot


Nex-6 camera modification : http://www.ir-photo.net/ir_nex6mod.html and video : https://www.youtube.com/watch?v=D776GX3oSHQ, Thanks to IR-Photo.net | Infrared Photography

Nex-5 camera modification : http://www.pbase.com/pganzel/inside_the_nex_5, Thanks to Pete Ganzel

Edited by Micholand - 29 May 2020 at 17:51
 



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slo.Metallc View Drop Down
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Posts: 504 		Post Options Post Options   Quote slo.Metallc Quote  Post ReplyReply Direct Link To This Post Posted: 14 July 2015 at 00:08
Hi stavros78,

I think that best answer for your question is Lenses and unmodified cameras for Infrared (IR) topic. You will find in there a table with lenses that are good or bad for IR photography.

If you post your results there, I think that Keith (groovyone) or someone from AMAE team will probably update the table with your results.
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Well, if it's bigger than 23x16mm, then it is huge!
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stavros78 View Drop Down
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Posts: 141 		Post Options Post Options   Quote stavros78 Quote  Post ReplyReply Direct Link To This Post Posted: 14 July 2015 at 07:50
I have see that and it's on the a mount category and have only a mount lenses, that was the reason for a new post.
But i'll post it and there.
Thanks
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Posts: 1591 		Post Options Post Options   Quote Alex H Quote  Post ReplyReply Direct Link To This Post Posted: 14 July 2015 at 08:06
Sony 16mm F/2.8 produces hot-spot starting at about f/5.6, if I remember correctly.
Sony 18-55 F/3.5-5.6 did not show any hot spots in my pictures.
Unfortunately, I can not re-test these lenses, as I do not have them any more.
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Posts: 3266 		Post Options Post Options   Quote nandbytes Quote  Post ReplyReply Direct Link To This Post Posted: 14 July 2015 at 19:32
I have SEL10-18mm and had 18-55mm, never had any hotspot problems with either lens.

I have used FE35 and FE55 in passing and not noticed any particular issues. I will try these again when I have more time.
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Micholand View Drop Down
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Posts: 15859 		Post Options Post Options   Quote Micholand Quote  Post ReplyReply Direct Link To This Post Posted: 19 July 2015 at 16:07
SEL 18-55/3.5-5.6 can produce a hot spot @18mm; to circumvent - set lens to 20mm and it's gone.
/Michael

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Posts: 199 		Post Options Post Options   Quote gwevans Quote  Post ReplyReply Direct Link To This Post Posted: 06 September 2015 at 18:01
I've found this post because I'm after the same information as Stavros78.

I've just had an A6000 converted to 590nm. So far I've only used the 16-70 f4 in testing over the past few days and I've noticed a mild hot spot when shooting from f8. The hotspot is more noticeable with an R72 filter on the lens.

If anyone can recommend any good E mount lenses for 590nm and 720nm infrared then it would be a great help.



Edited by gwevans - 30 May 2016 at 21:39
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stavros78 View Drop Down
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Posts: 141 		Post Options Post Options   Quote stavros78 Quote  Post ReplyReply Direct Link To This Post Posted: 06 September 2015 at 19:54
No hotspot with 16-70 ? That's great.

You have the filter on the sensor or on lens ?

In my nex6 with the filter on lens i have a huge hotspot from f4.
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stavros78 View Drop Down
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Posts: 141 		Post Options Post Options   Quote stavros78 Quote  Post ReplyReply Direct Link To This Post Posted: 06 September 2015 at 20:00
Also after testing the SEL 18-55/3.5-5.6, i had the same results as Micholand only that i have to set lens to 22-23 to remove hotspot.
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Posts: 199 		Post Options Post Options   Quote gwevans Quote  Post ReplyReply Direct Link To This Post Posted: 06 September 2015 at 23:50
The A6000 has been permanently converted to 590nm. Perhaps that's the difference. It could be the filter on the lens causing the hot spot.

Taken with the 16-70 f4 at f16.


Edited by gwevans - 06 September 2015 at 23:56
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Posts: 141 		Post Options Post Options   Quote stavros78 Quote  Post ReplyReply Direct Link To This Post Posted: 07 September 2015 at 07:08
Nice shot gwevans !

I 'm using the same Hoya r72 in all lenses.

I think maybe it's better with the filter on the sensor.
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stavros78 View Drop Down
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Posts: 141 		Post Options Post Options   Quote stavros78 Quote  Post ReplyReply Direct Link To This Post Posted: 07 September 2015 at 07:25
Two examples of 16-70 at f4. the hotspot is slightly corrected


Edited by stavros78 - 11 July 2017 at 20:36
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Posts: 141 		Post Options Post Options   Quote stavros78 Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2015 at 17:12
Finally i put an 720nm filter, that i bought from image-laboratory, on the sensor of my nex-6 .

The results i get are the same with the hoya R72, only some less flaring, but now i dond't mess with screwing and unscrewing filters in front of the lenses.
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Posts: 141 		Post Options Post Options   Quote stavros78 Quote  Post ReplyReply Direct Link To This Post Posted: 06 December 2015 at 17:26
I also tested again my lenses and update the first post's results.

Edited by stavros78 - 06 December 2015 at 18:45
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