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Micholand 
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Knowledgebase Contributor Joined: 30 October 2005 Country: Germany Location: MUC Status: Offline Posts: 18813 |
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 Posted: 08 April 2024 at 20:20 |
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"Opening soon!"  a7(converted) + FE 16-35/4 ZA OSS + Kase IR720 camera clip-in filter |
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Dopol
Alpha Eyes group 
Joined: 17 May 2007 Country: Netherlands Location: Utrecht Status: Offline Posts: 9770 |
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Posted: 11 April 2024 at 09:33 |
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 Fine caption and good photo too (says me, not liking IR-images in general) |
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 Be yourself; everyone else is already taken
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Micholand
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Knowledgebase Contributor Joined: 30 October 2005 Country: Germany Location: MUC Status: Offline Posts: 18813 |
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Posted: 11 April 2024 at 20:53 |
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Thanks Domien, glad this made you smile
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Micholand
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Posted: 15 April 2024 at 19:14 |
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"Prinzregent-Luitpold-Terasse"  a7(converted) + Voigtländer Heliar-Hyper Wide E 10/5.6 + Kase IR720 camera clip-in filter |
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darosa
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Joined: 23 March 2007 Country: Netherlands Location: Old Zealand Status: Offline Posts: 14144 |
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Posted: 05 May 2024 at 21:26 |
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I'm an absolute newby when it comes to IR and full spectrum and such. Recently I bought an IR720 filter to see if it might open a strange new world for me. Today it was sunny enough to go out with the filter on my a7rii but the results were far from mindblowing ... I read the filter on the sensor is too strong!
So now I'm thinking of having my old a7 converted, but I also have a a7iii that I don't use much. From what I read, full spectrum gives you the most options. Advice is very welcome! Which camera would be best: a7 or a73; is full spectrum a good idea; and is there a conversion service that you can recommend? |
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Micholand
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Knowledgebase Contributor Joined: 30 October 2005 Country: Germany Location: MUC Status: Offline Posts: 18813 |
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Posted: 06 May 2024 at 19:14 |
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Welcome to the world of IR Leo!
Long exposures with an IR filter on unmodified E-mount bodies won't work due to the strong UV/IR cut filter stack in front of the sensor as you already discovered  So the thick hot mirror filter needs to be removed and replaced with a new clear glass filter (full-spectrum conversion). This will give you the full choice of using various filters, either different IR wavelengths or UV/IR cut filter for normal visible light spectrum (OWB) again. If you're good at tinkering/DIY and have a good hand and no fear of electronics (well it's actually just removal of screws and flex-cables), you can do the disassembly of the E-mount body and conversion yourself. Which body you want to use and convert, a7 or a7III, makes no difference and it's up to you which one you prefer more from handling perspective. For filters I can recommend clip-in filters from Kase. They offer a set which also includes an UV/IR cut filter, hence the camera can be used for normal light spectrum, too. Some good resources for DIY conversion and disassembly of E-mount bodies: https://www.lifepixel.com/tutorials/infrared-diy-tutorials Lifepixel - Sony a7 teardown https://kolarivision.com/sony-a7r-iii-dissasembly-teardown/ |
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darosa
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Joined: 23 March 2007 Country: Netherlands Location: Old Zealand Status: Offline Posts: 14144 |
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Posted: 06 May 2024 at 23:09 |
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Thanks a lot for your quick reaction, advice and recommendations, Michael!
I will have a good look at the links you give. I'm not sure if have the courage for a DIY job ... Do you know of any company that does Sony conversions? I found this but they are rather pricey. Thanks again! |
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Fred_S
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Joined: 12 January 2017 Country: Netherlands Location: Noord Holland Status: Offline Posts: 13509 |
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Posted: 07 May 2024 at 20:16 |
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Hi Leo
I have sent you a PM with a suggestion for the conversion Cheers Fred |
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Micholand
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Knowledgebase Contributor Joined: 30 October 2005 Country: Germany Location: MUC Status: Offline Posts: 18813 |
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Posted: 07 May 2024 at 20:17 |
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This seems to be a comprehensive overview: https://robertreiser.photography/infrared-camera-conversion-service/
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darosa
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Joined: 23 March 2007 Country: Netherlands Location: Old Zealand Status: Offline Posts: 14144 |
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Posted: 07 May 2024 at 20:43 |
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Thanks Fred, you've got mail :-)
Thanks Michael, yes that's an interesting overview! I assume your a7 is DIY? |
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Phil Wood
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Joined: 24 March 2013 Country: United Kingdom Location: England Status: Offline Posts: 3229 |
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Posted: 07 May 2024 at 22:34 |
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I recently bought a converted Nex-5 on ebay for £105 - cheaper than converting one of my existing cameras. But I do miss a viewfinder, especially as the best results seem to come when the sun is out and the LCD is the most difficult to see.
I like the idea of clip-in filters - must see if they are available for the smaller sensors. I have found conversion to B&W fairly straightforward and effective, colour renditions are far less satisfactory. Channel swapping is often pretty ineffective so I shall have a good look at the robertreiser link. |
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Micholand
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Knowledgebase Contributor Joined: 30 October 2005 Country: Germany Location: MUC Status: Offline Posts: 18813 |
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Posted: 08 May 2024 at 19:10 |
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darosa
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Joined: 23 March 2007 Country: Netherlands Location: Old Zealand Status: Offline Posts: 14144 |
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Posted: 08 May 2024 at 19:36 |
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Micholand
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Knowledgebase Contributor Joined: 30 October 2005 Country: Germany Location: MUC Status: Offline Posts: 18813 |
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Posted: 20 May 2024 at 18:51 |
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Time to add a new image after nearly one month...
"Chestnut alley"  a7(converted) + Leitz Elmarit-R 135/2.8 + Kase IR665 camera clip-in filter |
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Fred_S wrote:
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