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iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15685
Expire: 2014-01-07
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Posted: Wed Jun 24, 2020 3:21 pm Post subject: EOS 1d mkII N converted to full spectrum |
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iangreenhalgh1 wrote:
I converted my EOS 1d mkII N to full spectrum to use for handheld IR photography and maybe some astrophotography with my MTO-1000.
Initial post conversion test shots with Canon EF 24-85:
#1 no filter - visible + IR, soft because IR and visible light focus at different points.
#2 with 720nm IR filter
#3 after AWB in GIMP
#4 Swapped red and blue channels
#5 with 720nm IR filter
#6 desaturated in GIMP, contrast boosted
#7 after AWB in GIMP, contrast boosted and red and blue channels swapped.
_________________ I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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visualopsins
Joined: 05 Mar 2009 Posts: 10531 Location: California
Expire: 2025-04-11
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Posted: Fri Jun 26, 2020 4:28 pm Post subject: |
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visualopsins wrote:
Very nice results! Was conversion difficult? Iirc involves precision grinding off the filters covering the sensor.
_________________ ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (51BB), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15685
Expire: 2014-01-07
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Posted: Sat Jun 27, 2020 11:08 am Post subject: |
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iangreenhalgh1 wrote:
It was a really easy conversion as I just removed the hot mirror altogether and didn't replace it with a new filter.
I did it this way to give full flexibility of what filters I use so I can use the same camera to produce 600nm false colour semi-IR images as well as 720nm IR-only.
I might convert another camera and fit a 720nm filter in place of the hot mirror, not sure yet. _________________ I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15685
Expire: 2014-01-07
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Posted: Sun Jun 28, 2020 8:05 am Post subject: |
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iangreenhalgh1 wrote:
The weather has been rotten here - heavy rains and thunderstorms, so still not ventured into the forest to try this converted camera out, but I did snap a few shots with a 600nm filter to get a false colour image rather than the also monochrome of a 720nm filter.
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_________________ I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15685
Expire: 2014-01-07
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Posted: Tue Jun 30, 2020 6:23 pm Post subject: |
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iangreenhalgh1 wrote:
Second attempt at infrared with the EF 24-85, this time using a red (660nm) filter. The lack of sunshine makes things much more difficult.
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_________________ I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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philslizzy
Joined: 07 Aug 2012 Posts: 4748 Location: Cheshire, England
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Posted: Tue Jun 30, 2020 10:29 pm Post subject: |
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philslizzy wrote:
Great pics Ian, messing about with the colours makes every picture in a batch looks unique.
I've done the colour channel swopping, it doesn't always work. But the black and white pics are great. Yours are just right.
I converted a Panasonic bridge camera years ago and I get great results from that. _________________ Hero in the 'messin-with-cameras-for-the-hell-of-it department'. Official. |
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visualopsins
Joined: 05 Mar 2009 Posts: 10531 Location: California
Expire: 2025-04-11
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Posted: Tue Jun 30, 2020 11:26 pm Post subject: |
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visualopsins wrote:
+1 b&w
I'd like to see 850nm filter results. Might be difficult to focus accurately though... _________________ ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (51BB), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
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iangreenhalgh1
Joined: 18 Mar 2011 Posts: 15685
Expire: 2014-01-07
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Posted: Thu Jul 02, 2020 12:05 pm Post subject: |
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iangreenhalgh1 wrote:
Cheers guys. I have just bought a cheap 850nm torch to try some nightime BW IR shooting. I think it will work without a filter on the lens as there won't be any visible light at night. Of course, I can always buy an 850nm filter if needed.
Here's my third attempt at IR with the EF 24-85, but this time using a red (660nm) filter. There was plenty of light but it was a very cloudy, gray day with very flat lighting. This proved to be a bad thing for IR, so it seems that, like with visible light, you need good sunlight for IR if your images are to avoid looking flat.
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_________________ I don't care who designed it, who made it or what country it comes from - I just enjoy using it! |
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