People in UVA - Walk on the Rhine promenade in Duesseldorf

[Kai]

Taken with a Canon 6D-FS, manual 28mm lens, ZWB2 plus QB21, 6400 ASA, 1 / 60s, f 8, WB on PTFE, color change by approx. 170 ° , color enhancement

 

 

 

 

 

 

 

 

 

[Andy Perrin]

The lady in photo 2 is going to have an interesting sunburn pattern on her leg. 

[colinbm]

Did you force the yellow or is it natural ?

[Fandyus]

This isn't pure UV, is it?

[Andy Perrin]

I think it is but the color wheel has been rotated 170 degrees so it’s not the standard presentation. 

[Christoph]

This is really beautiful! I like the false color look! 
As a true UV newbie, I'm asking myself a few questions. I keep failing at UV, keep coming close to throwing it all away and going back to IR. Maybe you can explain one or two things to me:
1. you are using ZWB2 and QB21. What are advantages to ZWB1 and QB39? Why this combination? Does one have leaks and the other doesn't?
2. how crucial is in-camera white balance? How do you do it? I don't have a chance with my Nikon.

[Andy Perrin]

Leaks depend on thickness as well as glass type. Unfortunately Chinese-made glass does not behave very predictably because it’s allowed large manufacturing tolerances. I think this is causing some of the frustration I see lately on the forum. The solution is to either keep experimenting until you find something that works or simply buy Schott/Hoya which are made to better standards. Or get a Baader. 
 

Anyway assuming you have no leakage, white balance can be set on the computer in the RAW and there is no need for in-camera WB. Just set your camera to monochrome while shooting so the histogram works properly. 

[OlDoinyo]

These are likeable shots, but the long exposure times with digital UV are causing problems with motion blurring in some frames. Depending on your camera, you may be able to crank the sensor ISO up several stops, which may help.

 

In the shot with the man taking a cellphone picture, it appears that content on his screen is faintly visible. Since most such screens give off little or no UV, this is a bit surprising.

[Andy Perrin]

OlDoinyo, I don’t think you are seeing the contents of his screen. To me it looks like either a reflection or possibly his screen surface delaminating partially in the top right corner. 

[Nate]

I do like the different look. Wondering if the purple is just changed to a different hue and saturated.  Also agree with Andy, I think the Phone in the pic is a screen protector with issues, reflection, or a huge crack.

[Kai]

18 hours ago, colinbm said:

Did you force the yellow or is it natural ?

I changed the yellow-blue balance a bit. I have reinforced yellow with it.

But yellow in the original now appears blue (because of the color reversal, so that the sky becomes a little bluish). 

[Kai]

18 hours ago, Fandyus said:

This isn't pure UV, is it?

350-400 nm (ZWB2 plus QB21). Only very strong NIR sources penetrate there. But not with these motifs. 

17 hours ago, Andy Perrin said:

I think it is but the color wheel has been rotated 170 degrees so it’s not the standard presentation. 

Exactly. "Artistic Interpretation" :)

[Kai]

5 hours ago, Christoph said:

This is really beautiful! I like the false color look! 
As a true UV newbie, I'm asking myself a few questions. I keep failing at UV, keep coming close to throwing it all away and going back to IR. Maybe you can explain one or two things to me:
1. you are using ZWB2 and QB21. What are advantages to ZWB1 and QB39? Why this combination? Does one have leaks and the other doesn't?
2. how crucial is in-camera white balance? How do you do it? I don't have a chance with my Nikon.

First of all, thank you very much :)
I am also an avid IR photographer - for almost 20 years. But I've only been taking UV photos for 5 years, and only really photographically (and not just scientifically and technically) this year.
UV photography is tough business! In the end, I only really like a few pictures. But then they are also unique :)

 

ZWB2 plus QB21: I have compiled the manufacturer's curves and made no practical comparisons. In my system it corresponds to the Baader-U without the dichroic problems with wide angle lenses. The permeability starts a few nm earlier and ends a few nm earlier. With strong NIR (plants) you need a second QB21.
https://www.ultravioletphotography.com/content/index.php?/topic/4961-pinhole-against-nikkor-50mm-f-2-1964/&tab=comments#comment-51034

 

 

Unfortunately, I can't say anything about Nikon. 

Stick with it and good luck 

[Kai]

4 hours ago, Andy Perrin said:

OlDoinyo, I don’t think you are seeing the contents of his screen. To me it looks like either a reflection or possibly his screen surface delaminating partially in the top right corner. 

I think, delamination is a good approach. It´s not part of the picture on the screen:

[dabateman]

I just assumed it was an iPhone. 

So you can ask after how many minutes of owning it did you break the screen? 

 

[colinbm]

7 hours ago, Kai said:

I changed the yellow-blue balance a bit. I have reinforced yellow with it.

But yellow in the original now appears blue (because of the color reversal, so that the sky becomes a little bluish). 

Thanks Kai
This is a very artistic approach.

[Kai]

6 hours ago, colinbm said:

Thanks Kai
This is a very artistic approach.

It´s inspired by 
Kolomenskoye Park, Moscow, Russia - Scapes: Land, Sea, City - UltravioletPhotography

South West of France - Scapes: Land, Sea, City - UltravioletPhotography

and others...

[Andrea B.]

Very enjoyable series, Kai. It is not often that we get some reflected UV street photography.

[Kai]

Thank you very much, Andrea.
Yes, street photography is a real challenge in UV. It was all the more fun :)