flower and leaves of Tromboncino - trombetta (squash) zucchetta - zucchini - zucchetta (from albenga Italy) - and slice with 365 nm light

[photoni]

a type of squash that when young is eaten like a green courgette, if left to mature it becomes a pumpkin yellow.

it is a zucchini trumpet ... with a sweeter taste, a little almond, in Liguria it is used fresh to season pasta or breaded and fried (also flowers)

 

This time I used Capture One (no ACR)

for all the images I made the WB on the gray concrete background (see circle)

I am amazed that this yellow flower, very similar to opuzia (which came green) has turned red ... with the two BG filters together

[Cadmium]

Toni, Nice shots! Your BG39 seems to be working good for visual. I don't usually see BG25 used much (alone or stacked). I really like your stacked BG25+BG39 in this set, very nice!

For what it's worth, BG25 is very similar to BG3, which people use more commonly to stack with BG39 or S8612 to show UV+Blue/Green, with similar results to your BG25 stack.

[dabateman]

I like these images. Looks interesting to have some variation in color with the BG39 and bg25.

[ulf]

Toni, Nice shots! Your BG39 seems to be working good for visual. I don't usually see BG25 used much (alone or stacked). I really like your stacked BG25+BG39 in this set, very nice!

For what it's worth, BG25 is very similar to BG3, which people use more commonly to stack with BG39 or S8612 to show UV+Blue/Green, with similar results to your BG25 stack.

I normally use both BG3 and BG25 in shooting series, stacked with S8612. The main difference between the colours is that the green areas comes out more saturated, brighter and less bluish green.

The BG25-stack is slightly easier on the WB.

 

I'll see if I can find some good comparison-examples to show that with pictures in a new topic later.

[photoni]

Today I have cut a slice of courgette, in the part with the seeds.
with light (Nemo 365 nm) from above "on the left"

with light from under the glass "on the right"

L. Meritar 50 mm f 11

.

Sony A7 full spectrum without any filter

.
Sony A7 f.s. with Green filter

.
Sony A7 f.s. with Red filter

.
Sony A7 f.s. with QB29 filter

 

 

[colinbm]

Very good Toni

[otoien]

These are beautiful, thanks for posting!