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Infra-red photog?????
Apr 15, 2020 16:46:22 #
digit-up wrote:
The son of a close friend, is a marvelous “sketch ... (show quote)
I think all digital cameras can be converted to IR since it as far as I know, all camera sensors are sensitive to IR wavelengths.
And since this camera is a mirrorless, focusing is not affected.
The biggest concert is the lens. Many lenses work fine with IR. But some don't. The problem is that they can display a hot spot in the center of the image. And the hot spot will change in size based upon what f-stop is being used. I have many lenses, and many of them fairly old, and so far, I have only one lens that seems to exhibit the hot spot problem, and only as I stop down. And it is a kit lens. By the way, I have two cameras converted to IR.
Regarding filters, I just use eBay and have a variety such as 590nm, 630nm, 720nm and 850nm. I haven't encountered any problems with these inexpensive filters.
Apr 15, 2020 19:13:36 #
digit-up wrote:
The son of a close friend, is a marvelous “sketch ... (show quote)
Read Nikon website on D810A <-- A -- not just D810. has some kind of IR (infra red) filter built in for astrophotography. ebay has many good used ones or you can check other places/websites for used cause they dont make them anymore. my $.02. thanx
Apr 15, 2020 19:24:23 #
racerrich3 wrote:
Read Nikon website on D810A <-- A -- not just D810. has some kind of IR (infra red) filter built in for astrophotography. ebay has many good used ones or you can check other places/websites for used cause they dont make them anymore. my $.02. thanx
Actually, it just expands the range in the red direction a little bit to include the 656nm hydrogen alpha region. It is not a true IR camera since it only expands a little into darker red.
A typical camera records some HA, but with some attenuation.
Apr 15, 2020 19:37:45 #
saichiez
Loc: Beautiful Central Oregon
Steved3604 wrote:
This is not digital -- but is analog. Check out the Rollei/Agfa 400 film. When developed in HC 110 64 or 128 to one mix --- It is outstanding. Not as convenient as digital -- but striking results.
SORRY? You are WRONG.. The Fuji is DIGITAL in the form of the X-trans 16MP MILC -mirrorless interchangeable Lens camera and a damn fine digital at that. It can be used for the purpose discussed when upon conversion to infra-red.
A very good candidate indeed after you take in the conversion cost to infra-red. I have two X-A3's and use them a great deal.
Apr 15, 2020 19:42:14 #
JimH123 wrote:
Actually, it just expands the range in the red direction a little bit to include the 656nm hydrogen alpha region. It is not a true IR camera since it only expands a little into darker red.
A typical camera records some HA, but with some attenuation.
A typical camera records some HA, but with some attenuation.
so I didn't fully understand that. you have a little more clearer explanation, thank you.
Apr 15, 2020 22:22:55 #
When you get into IR photography I think you need a bit of an experimental state of mind plus a willingness to learn some of the technical bits. The whole process is a bit fiddly because very few cameras are designed and built with IR in mind. Even after some experience you can still be taken by surprise (both good and bad) by the results since IR interacts with some materials and surfaces on ways we don’t see with our own eyes.
Apr 16, 2020 00:14:59 #
digit-up wrote:
Don't forget Kolarivision.com also does IR conversions, such as my mirrorless Sony a6000 camera.Thank you very much ......all!!!....RJM
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