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GRB3 plus Lee 115 or Rosco 729 filters

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#1 colinbm

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Posted 29 April 2021 - 10:46

GRB3 plus Lee 115 or Rosco 729 filters
Tests on the full spectrum Sigma fp with the Canon 40mm pancake lens, CWB in camera, with GRB3 plus Lee 115 or Rosco 729 filters, no other processing.
I am amazed at the versatility of the Canon 40mm pancake lens.
Never having used a film 35mm camera & only ASP sensor digital cameras over the last 18 years, I can't get over how wide the 40mm lens is.

Time for some photos....

1/ GRB3 filter only, CWB in camera, UVA + Visible, with some IR leak.

Attached Image: 2021 04 29 GRB3 CWB web.jpg


2/ GRB3 + Rosco 729 filters, CWB in camera, half widths 460nm to 525nm.

Attached Image: 2021 04 29 GRB3 + Rosco 729 CWB web.jpg


3/ GRB3 + Lee 115 filters, CWB in camera, half widths 400 to 555 nm + IR leak.

Attached Image: 2021 04 29 GRB3 + Lee 115 CWB web.jpg


4/ Rosco 729 filter only, CWB in camera, half widths 460 to 525nm, minus red, IR above 775nm.

Attached Image: 2021 04 29 Rosco 729 CWB web.jpg


5/ Lee 115 filter only, CWB in camera, half widths 400 to 560nm, IR leak above 730nm.

Attached Image: 2021 04 29 Lee 115 CWB web.jpg

Edited by colinbm, 29 April 2021 - 10:48.


#2 Christoph

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Posted 29 April 2021 - 12:51

I love these tests!

#3 Christoph

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Posted 29 April 2021 - 12:55

The effect of a inefficient hot mirror is quite amazing. Love the color variation with Lee 115. There are other interesting styles out there. Try the more obscure tones like Urban Sodium or CTO for pale blue, mint or acid green vegetation... Lee swatch book is like a Swiss Army knife for IR fans

#4 colinbm

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Posted 29 April 2021 - 12:56

Thanks Christoph
Suggestions are welcome, I am enjoying the fp.

#5 colinbm

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Posted 29 April 2021 - 13:04

Lee & Rosco swatch books are not able to be got in Australia, it seems ?
I have placed reasonable significant orders & aske for swatch books, but they are silent when I have asked.
I have asked US suppliers for swatch books but they won't send outside USA.
I have some older books I got years ago, but they are only 1-1/2 inches wide.
Rosco I prefer as Lee are not colour fast.