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Forum: UV/IR Thermal or Xray Photography September 26th, 2018, 10:12 PM
Replies: 24
Views: 722
Posted By Steve Clay
Hi Asher, Well that is perhaps a separate...

Hi Asher, Well that is perhaps a separate discussion, because there are more uses than I am maybe aware of, and I see a few UV photographers here on your site...
Often flowers are shot in UV to see...
Forum: UV/IR Thermal or Xray Photography September 26th, 2018, 07:02 PM
Replies: 24
Views: 722
Posted By Steve Clay
Primarily it illustrates how similar the white...

Primarily it illustrates how similar the white balance is between those 4 filters,
with the exception of the Moon U, which is slightly more blue and has slightly faster exposure.
An intentional...
Forum: UV/IR Thermal or Xray Photography September 26th, 2018, 06:44 PM
Replies: 24
Views: 722
Posted By Steve Clay
All 4 close up: ...

All 4 close up:
http://ultravioletphotography.com/content/uploads/monthly_09_2018/post-87-0-86996800-1538012473.jpg
Forum: UV/IR Thermal or Xray Photography September 26th, 2018, 06:34 PM
Replies: 24
Views: 722
Posted By Steve Clay
Here is a Sparticle test comparing Baader U, LUV...

Here is a Sparticle test comparing Baader U, LUV U, La La U, and Moon U.
http://ultravioletphotography.com/content/uploads/monthly_05_2017/post-87-0-07244500-1496084947.jpg

Here they all share...
Forum: UV/IR Thermal or Xray Photography September 26th, 2018, 04:18 PM
Replies: 24
Views: 722
Posted By Steve Clay
Unlike the LUV U and the La La U, the Moon U was...

Unlike the LUV U and the La La U, the Moon U was specifically designed to transmit UV + a small amount of Blue, just like the graph shows, and was not listed as a 'UV-only' filter, but specifically...
Forum: UV/IR Thermal or Xray Photography September 9th, 2018, 09:49 PM
Replies: 24
Views: 722
Posted By Steve Clay
The typical 'UV only' filter cuts off...

The typical 'UV only' filter cuts off transmission above 400nm, removing visual and IR.

In this post I am going to use the term 'blue' when referring to the 400nm to 500nm range,
instead of using...
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Posting images or text grants license to OPF, yet of such remain with its creator. Still, all assembled discussion 2006-2017 Asher Kelman (all rights reserved) Posts with new theme or unusual image might be moved/copied to a new thread!