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kerrath View Drop Down
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Posts: 1672 		Post Options Post Options   Quote kerrath Quote  Post ReplyReply Direct Link To This Post Posted: 15 January 2015 at 23:16
Originally posted by Idyllic Pics Idyllic Pics wrote:

I am interested in this style of photography. Can you suggest search terms to use to learn more about which lenses lend themselves to the process?

I can look specifically for the ones listed above, but is there more info on what to look for in terms of coatings or lens elements?

Thanks!
Over on Ultravioletphotography.com they have compiled a list of lenses which have been tested and found adequate for reflected UV photography. There are some variations among lenses which can make it hard to find a good UV copy at times, but it is a starting point. There are other threads on the same site which go into greater detail on a number of the lenses.

The UV Sticky #2: UV-Capable Lenses 2014
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Alex H View Drop Down
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Posts: 1591 		Post Options Post Options   Quote Alex H Quote  Post ReplyReply Direct Link To This Post Posted: 15 January 2015 at 23:56
Exactly what Craig said.

Also, check their "Introduce yourself" section - there are few Australian members on that forum, although none from Melbourne, as far as I know.
Ultraviolet-induced visible fluorescence photography - A7, A77, NEX6, NEX6-FS - Gallery
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Idyllic Pics View Drop Down
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Posts: 415 		Post Options Post Options   Quote Idyllic Pics Quote  Post ReplyReply Direct Link To This Post Posted: 16 January 2015 at 00:23
Brilliant, kerrath and Alex, thank you.

PS - to clarify ( I think I posted in wrong thread!!) I wish to do the fluorescence stuff. Would those UV capable lenses be better for that?
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thornburg View Drop Down
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Posts: 3765 		Post Options Post Options   Quote thornburg Quote  Post ReplyReply Direct Link To This Post Posted: 16 January 2015 at 00:58
I'm wondering... if one has a supposed UV light source, but no UV camera, is there an easy way to check whether it's truly UV or not?
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Akunde View Drop Down
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Posts: 480 		Post Options Post Options   Quote Akunde Quote  Post ReplyReply Direct Link To This Post Posted: 16 January 2015 at 01:12
Originally posted by Idyllic Pics Idyllic Pics wrote:

Brilliant, kerrath and Alex, thank you.

PS - to clarify ( I think I posted in wrong thread!!) I wish to do the fluorescence stuff. Would those UV capable lenses be better for that?

I've had a bit of a look into the fluorescence space recently, and my understanding the that any lens will do, as your capturing the visible spectrum light given off by a reaction to the UV light source, not the UV itself.

Originally posted by thornburg thornburg wrote:


I'm wondering... if one has a supposed UV light source, but no UV camera, is there an easy way to check whether it's truly UV or not?


Point the UV light at a surface in a well used kitchen or bathroom. All of the bacteria and dust will light up It's an eye opener.



Edited by Akunde - 16 January 2015 at 01:15
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Jocelynne View Drop Down
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Posts: 2819 		Post Options Post Options   Quote Jocelynne Quote  Post ReplyReply Direct Link To This Post Posted: 16 January 2015 at 01:28
Many thanks for this excellent and informative thread/essay.

I have been interested in IR and UV photography for years. Obtaining IR filters and lenses is relatively easy and inexpensive. However, obtaining IR opticals has proven to be difficult.

Consequently, I am pleased that the A700 is usable for UV work. I have this camera body. Now to find appropriate lenses. I will try Tamron.

Thanks again.

Only on Dyxum...
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Alex H View Drop Down
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Posts: 1591 		Post Options Post Options   Quote Alex H Quote  Post ReplyReply Direct Link To This Post Posted: 16 January 2015 at 02:27
Originally posted by Jocelynne Jocelynne wrote:

Many thanks for this excellent and informative thread/essay.

I have been interested in IR and UV photography for years. Obtaining IR filters and lenses is relatively easy and inexpensive. However, obtaining IR opticals has proven to be difficult.

Consequently, I am pleased that the A700 is usable for UV work. I have this camera body. Now to find appropriate lenses. I will try Tamron.

Thanks again.

Only on Dyxum...


Is your A700 unmodified? The exposures with unmodified camera will be very long. Regarding UV-lenses - there are few good lenses that are still affordable in 35mm and 50mm focal length.
Ultraviolet-induced visible fluorescence photography - A7, A77, NEX6, NEX6-FS - Gallery
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kerrath View Drop Down
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Posts: 1672 		Post Options Post Options   Quote kerrath Quote  Post ReplyReply Direct Link To This Post Posted: 16 January 2015 at 05:57
Originally posted by Idyllic Pics Idyllic Pics wrote:

Brilliant, kerrath and Alex, thank you.

PS - to clarify ( I think I posted in wrong thread!!) I wish to do the fluorescence stuff. Would those UV capable lenses be better for that?

The fluorescence stuff is Ultraviolet-Induced Visible Fluorescence (UVIVF), meaning the UV is responsible for making the materials fluoresce to emit visible light. The UV light itself is not photographed, and is in fact blocked. Check out Alex's site where he has compiled information on UVIVF photography. His post holds most of the information you need to get started. You also might take a look at page three of the Luminous Flowers thread (based on Alex's original thread but for anyone to post) where there is some discussion about UVIVF vs reflected UV and what lenses to use.

This thread covers Reflected UV photography, in which you photograph the ultraviolet light bouncing off your subject, rather than visible light emitted by it. In this case, you are blocking visible light, but passing UV. This is the type for which you need dedicated lenses and a modified camera (so as to not block UV) to have reasonable exposure times.

Edited by kerrath - 16 January 2015 at 06:12
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Idyllic Pics View Drop Down
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Posts: 415 		Post Options Post Options   Quote Idyllic Pics Quote  Post ReplyReply Direct Link To This Post Posted: 16 January 2015 at 06:09
Thankyou, Kerrath, that has cleared up an obvious confusion. Much appreciated.
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Alex H View Drop Down
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Posts: 1591 		Post Options Post Options   Quote Alex H Quote  Post ReplyReply Direct Link To This Post Posted: 16 January 2015 at 15:03
Thanks Craig, you explained the differences very well.
Ultraviolet-induced visible fluorescence photography - A7, A77, NEX6, NEX6-FS - Gallery
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