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iangreenhalgh1
Joined: 18 Mar 2011
Posts: 15685
Expire: 2014-01-07
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 Posted: Mon Jun 29, 2020 12:13 pm Post subject: 28mm for infrared on APS-H |
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iangreenhalgh1 wrote:
Hi folks
Despite having a huge lens collection, I have rather few 28mm lenses that will fit my Canon EOS 1d mkII.
The best one I have currently is a Mamiya-Sekor SX 2.8/28, which is a very good lens, but has never impressed me much, good but uninspiring.
A 28mm Distagon is too expensive for my budget, the more modern Sigma DC 1.4/20 AF lens has bad corners on APS-H and is soft in the centre until f2.8, so not for me.
Canon EF 2.8/28 maybe? Although my experience of Canon EF lenses has been uniformly negative.
I need a lens that gives clean, crisp IR images with no hotspot, sharp to the corners at f8 and would prefer an AF lens if possible.
Suggestions?
Current front runners are the OM Zuiko 2.8/8 and Nikkor 3.5/28.
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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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caspert79
Joined: 31 Oct 2010
Posts: 2921
Location: The Netherlands
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| Posted: Mon Jun 29, 2020 1:32 pm Post subject: |
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caspert79 wrote:
SMC Pentax 28mm f/3.5.
Not the ‘M’ version, but its predecessor (often referred to as ‘K’ series). |
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D1N0
Joined: 07 Aug 2012
Posts: 2491
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| Posted: Mon Jun 29, 2020 5:32 pm Post subject: |
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D1N0 wrote:
Here is a list of lenses to use and to avoid concerning the Hot Spot.
https://kolarivision.com/articles/lens-hotspot-list/
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pentaxian |
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visualopsins
Joined: 05 Mar 2009
Posts: 10531
Location: California
Expire: 2025-04-11
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| Posted: Mon Jun 29, 2020 6:54 pm Post subject: |
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visualopsins wrote:
 
Have to laugh " Asahi 55 mm f/1.8 Super-Takumar SMC" is listed Good Performr. I wonder which of 29 variations?
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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: Mon Jun 29, 2020 7:42 pm Post subject: |
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iangreenhalgh1 wrote:
Cheers, but that list is a bit wierd. It lists several lenses I have used with great success for Ir as having hotspots, such as the non-AI Nikkor 2.8/24.
I suppose it's a case of having to try a lens for myself at it seems different cameras and different replacement filters all affect the presence of a hotspot or not.
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stevemark
Joined: 29 Apr 2011
Posts: 3754
Location: Switzerland
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| Posted: Mon Jun 29, 2020 8:42 pm Post subject: |
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stevemark wrote:
| iangreenhalgh1 wrote: |
Cheers, but that list is a bit wierd. It lists several lenses I have used with great success for Ir as having hotspots, such as the non-AI Nikkor 2.8/24.
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Yeah, there seem to be some errors in the above mentioned Kolari list,... e. g. the Minolta AF 2/100mm works flawlessly on my 720nm converted Sony A100 (10 MP CCD APS-C sensor). And so does the Minolta AF 2.8/28mm, the 1.4/50mm and the 1.4/85mm.
Stephan
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