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The lounge Relax, take a break from photo and camera talk - have a chat about something else for a change. Just keep it clean and polite!

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  #1  
Old 14th November 2016
sapper sapper is offline
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Infra Red

I am thinking of getting a camera that has been converted for infra red. Saw this on the auction site, http://www.ebay.co.uk/itm/1121988658...%3AMEBIDX%3AIT.
A Pen E-PL1.
I don't know these cameras, is it a late model? Worth going for?
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Old 14th November 2016
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Re: Infra Red

There are no shots of the results achieved with it.

Who did the conversion?
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Old 14th November 2016
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Re: Infra Red

As I would like an Infra red camera I am interested in this too

Looking at his feedback he has sold a few conversions to people who were happy

http://feedback.ebay.co.uk/ws/eBayIS...rchInterval=30
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Old 14th November 2016
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Re: Infra Red

I had an E-PL1 converted to 720nm IR by Advanced Camera Services in Norfolk back in 2011. It wasn't cheap at 312 inc.VAT. I get good results but this wavelength is more oriented towards mono IR though colour is possible.

The E-PL1 is an early Pen but its menu system will look quite familar.

Also seen this: http://www.protechrepairs.co.uk/infr...onversion.html

Some lenses do exhibit hot spots. There is some information here:

http://fourthirds-user.com/wiki/Infra_red_hot_spots

Contributions to expand this wiki page are very welcome

Ian

PS, my camera is available for hire!
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Last edited by Ian; 14th November 2016 at 04:50 PM.
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Old 14th November 2016
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Re: Infra Red

Thanks guys, very helpful.
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Old 15th November 2016
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Re: Infra Red

I find a full spectrum conversion much more flexible on a mirrorless body. The cameras EVF means there's no issues with framing with a dark filter on the lens, so all sorts of conversions can be tried
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Old 15th November 2016
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Re: Infra Red

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Originally Posted by Petrochemist View Post
I find a full spectrum conversion much more flexible on a mirrorless body. The cameras EVF means there's no issues with framing with a dark filter on the lens, so all sorts of conversions can be tried
In case this isn't clear, a full spectrum conversion means the I/R filter in the camera is not replaced with a different one, just optically clear glass. This means you can choose the level of I/R filtering by using filters on the lens and there fore you aren't stuck with one wavelength. The cost is that not all lenses will take the same size filters, etc.

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Old 15th November 2016
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Re: Infra Red

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Originally Posted by Ian View Post
In case this isn't clear, a full spectrum conversion means the I/R filter in the camera is not replaced with a different one, just optically clear glass. This means you can choose the level of I/R filtering by using filters on the lens and there fore you aren't stuck with one wavelength. The cost is that not all lenses will take the same size filters, etc.

Ian
Thanks Ian , I guess further explanation was needed

Actually a full spectrum conversion should have the internal cut filter replaced with quartz not glass. Glass reduces the UV response significantly so that would normally be called a two spectrum conversion. There do seem to be a few conversion services that don't understand this distinction.

While not all my native lenses take the same size filters stepping rings make this a very minor inconvenience. Quite a few of the more exotic filters I have aren't available as standard screw on filters. I only have them as 25mm glass circles and I've only seen them larger as 50mm squares. 25mm discs actually work OK on my 17mm 2.8 as well as a few of my adapted lenses (c-mounts, most enlarger lenses & my 600mm CAT).
Some of the filter options I use are adjustable (Variable wavelength IR & variable ND, both transmit IR & allow the proportion of visible to be varied) which isn't very practical inside the bodies interior.
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Old 16th November 2016
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Re: Infra Red

Thanks for this info guys. This is much more complicated than I thought.
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Old 16th November 2016
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Re: Infra Red

I have a Pen EP-1 that takes very good IR photos without any conversion. I use an old IR filter left over from my film days to block out any visible light. There is enough light to hand hold in sunlight although darker conditions do require a tripod. Both AF and auto exposure work.
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Old 16th November 2016
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Re: Infra Red

I have also been looking at getting my OMD EM1 converted to a full spectrum so as to use selective filters for astrophotography. As well as the other sites mentioned above I found this one very informative. Its not at all straight forward as to which band of wavelength you would require.

https://www.lifepixel.com/

Why are all these services available in the USA but not over here?
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Old 16th November 2016
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Re: Infra Red

Quote:
Originally Posted by RogerMac View Post
I have a Pen EP-1 that takes very good IR photos without any conversion. I use an old IR filter left over from my film days to block out any visible light. There is enough light to hand hold in sunlight although darker conditions do require a tripod. Both AF and auto exposure work.
Show some results and what filter is it.


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Old 17th November 2016
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Re: Infra Red

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Originally Posted by alfbranch View Post
Show some results and what filter is it. [please]


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and it's a Hoya INFRARED (R72)
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Old 17th November 2016
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Re: Infra Red

This is an interesting and useful thread: I've had an EPL-1 sitting on the shelf for years while I've been thinking about getting it converted...
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Old 18th November 2016
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Re: Infra Red

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Thanks for this info guys. This is much more complicated than I thought.
I found getting interesting results very easy, but like all photography there's always more to learn. You can basically make the field as complicated as you like

Perhaps it might be useful to add a link to an IR dedicated forum
There's quiet a bit of info there as well as loads of example images covering monochrome to extreme psychedelic, mostly with filter info.
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