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UltravioletPhotography

Yellow/orange filters for simulate Aerochrome film again


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Orange filter OC12 (50% on 550nm) for the start

I added СЗС14 (about as СЗС24) in the hope to muffle Infrared and get more hues in vegetation. I'm not sure if it made sense.

 

Olympus em5FS, OC12+СЗС14

processing: channel replacement, contrast, saturation

 

foggy weather

 

post-237-0-64639800-1557419883.jpg

 

post-237-0-34388100-1557419958.jpg

 

post-237-0-68719600-1557419986.jpg

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Yes, this is when I really like the #12 post processing better than the all-in-one #729 method.

I really do miss the yellows that get transposed from visual red with the #12 process.

Well done.

I like the last one best.

The kid with the hat is just a little scary for me, I am worried he will fall... :wacko:

What post process did you use?

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Thank you very much! :) I like it better, too. Many colors, many shades. and, уes, the variety of yellow tints. Processing in the little things is a little different in different pictures, depending on the situation and ideas.

But basic steps is such:

White balance depending on what to need. Or asphalt, gray stone or face

mixer channels R--B, G--R, B--G

if it is necessary - auto level or auto contrast

in lab mode - adjustment - curves at a and b channels for desired colors and add sharp in lightness channel by filter sharpen - smart sharpen

again RGB color mode. if it is need - to make overlay layers with multiply or softlight or others. with opacity.

if it is necessary - auto tone or colour

 

post-237-0-90354500-1557464837.jpg

 

post-237-0-58764100-1557464868.jpg

 

post-237-0-66710600-1557464897.jpg

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I don't know how to do that processing. :(

Your flower/building pic is very nice!

 

What building is that? Are those both clocks, or is one a speedometer?

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Andy Perrin

These are all fantastic images, ins13. I love the flowers and the little kid on the railing[*] best.

 

[*] How was he allowed to do that?! Was it less dangerous than it looked?

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Cadmium, thanks!) Why do not know ? lab colour in photoshop? I'll write in greater detail later once I've determined the best options.

It's a University building. These are a clock, barometer and thermometer. not speedometer :)

 

Andy Perrin, thank you very much!!! :)

it's less dangerous than it looks. There is large but smooth downhill just behind the railing . to fall and slide down is possible of course but unlikely big damages

 

some more pictures

post-237-0-21366000-1557470278.jpg

 

post-237-0-22492200-1557470290.jpg

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Yep, you know how to process. Those are great, probably some of the best I have seen using #12.

Yellow tail lights... love them. Yellow botinki! (Evgeniya taught me that word) I think I am using that word correctly...?

The fog actually works very nice with these.

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Thank you for the kind words!!))

yes, yellow botinki :D

I completely agree: in foggy and non-Sunny weather the orange filter works perfectly. I like it less with the sun

 

post-237-0-21322100-1557493796.jpg

 

post-237-0-11524000-1557493810.jpg

 

post-237-0-44193700-1557493829.jpg

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Eka,

Outstanding Aerochrome processing on these images! The first one is great just on the subject matter alone, but colors of the crowds of people is quite intriguing. I had to look up the OC12 orange filter, and see that it's quite a bit darker that the standard #12 yellow, which is normally used for this kind of processing.

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Cadmium, the red colour of the street signs is a result of channel mixer

 

GaryR, thank you very much! :)

 

But probably it's not just the differences between the different orange filters. I checked orange ОС11 filter and yellow filter ЖС18. Results are similar. I don't know, probably, nobody paid attention that I use for these images the IR-blocked glass СЗС14 - like СЗС24. I wrote about it at first post. It works very well for imitating infrared film. The main thing is to choose the right degree of cut-off of the infrared. For example сзс25 is too much cut-off

Here are the comparisons OC12 and OC12+СЗС14

the processing of both images is exactly the same

 

OC12

post-237-0-90497900-1557637774.jpg

 

OC12+СЗС14

post-237-0-14996900-1557637755.jpg

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Yes, the red color of the sign is a result of channel mixing using the 550nm longpass filter, but what I am saying is that the sign is blue visually, thus the channel swapped red represents IR. In other words, the blue paint of the sign reflects strong IR.

It is not important, it just had me curious where the red was coming from with the blue and white sign, it comes from the IR in the paint, visual blue disappears with minus blue filters.

https://russiatrek20.../moscow2020.jpg

 

Same street corner on Google street-view:

https://www.google.c...!7i13312!8i6656

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The OC12 is equivalent to Schott OG550. Both have slightly steeper transmission slops than the Tiffen #12 filter.

OC12 and OG550 work virtually as well for this as does #12, in my opinion.

Here are some graphs below.

 

The red line is OG550 2mm thick. 3mm would be even closer.

post-87-0-63225100-1557639294.jpg

 

post-87-0-94291800-1557639340.jpg

 

OG550 3mm thick:

post-87-0-92347900-1557639485.jpg

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The blue sign turns red.

The color checker card blue turns red.

The blue house turns red.

 

This is not because of the visual color blue, it is because of the IR.

If you block IR with a #12 (550nm) + Visual only bnandpas filter stack, then the visual blue should turn black, using the exact same post processing.

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Yes, the color of the blue street signs turned black with more strong ir-blocking filter

I apologize for the poor quality of the pictures. these signs were far from me. nothing closer.

 

post-237-0-68408700-1557647648.jpg

 

And, of course, it is not blue visible, I understand it, because the orange filter does not pass blue

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Very interesting photos and combination of filters!

 

Does adding of IR Block a bit brighter 'yellow' color (after processing) than using only ОС12?

It seems the color of yellow is much better. Not so greenish.

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