Michael's Gate

[Unscenerie]

Hello good people!

Hope you're doing great.

 

This is the last standing gate of the original four in Bratislava's historical fortification.

 

Shot with Sony A7MK1 FS, Meopta Anaret 4.5/80 (Czechoslovak enlarger).

IR: Hoya R72

VIS: Tangsinuo's BG39 (older uncoated version)

UV: Tangsinuo's ZWB1 + TSN575.

 

IR: Hoya R72

 

 

VIS: Tangsinuo's BG39 (older uncoated version)

 

UV: Tangsinuo's ZWB1 + TSN575.

 

UV: Tangsinuo's ZWB1 + TSN575.

This one was edited in Darktable using a lab color profile,

and white-balanced on an area of the building's surface.

 

 

 

 

Editor's Note:  I placed the captions above each photo for clarity.

[colinbm]

Nice collection.
Interesting how the IR opens up the shadow. UV

[ulf]

1 hour ago, colinbm said:

Nice collection.
Interesting how the IR opens up the shadow.

I think the filter order in the description is not matching the images.

If I am right the images are

IR

VIS

UV

UV

 

The strongest tell-tale is the darkness of the sky.

Also the blur of moving people hint that the two last are shot with longer exposure time, as expected for UV-images.

The second image also have less chromatic aberration when pixel peeping. That is clearly the VIS-image.

 

The gate is an interesting motif.

[Nate]

Nice comparisons. I do believe LAB works best with some cameras in UV with darktable, as shown here.

[Unscenerie]

Thanks.

 

@ulf, you are right about the order of the pics. I fixed the description.

Interesting point about the chromatic abberation, haven't realized that.

 

@Nate, I have little to say about LAB and darktable and a lot to learn.

 

[ulf]

40 minutes ago, Unscenerie said:

Thanks.

 

@ulf, you are right about the order of the pics. I fixed the description.

Interesting point about the chromatic abberation, haven't realized that.

To me the type order was clear from the beginning, by the sky darkness, but did not notice that the text did not match, until I read Colin's comment.

Then I checked for more telltales to really verify that my first conclusion was correct.

 

The chromatic aberration is not very big, just noticeable when you zoom in to 100%. It is a nice sharp lens.

You'll have more or less of aberrations with lenses that are not corrected for a wide exotic wavelength band, when using them outside their intended range.

[photoni]

@Unscenerie A nice gallery. You have amazing colors with Hoya R72 and Darktable

I use the A7 with Capture One and have never seen them :)

[Unscenerie]

Thanks, everyone.

 

I'm trying to grasp the idea of chromatic aberration with IR and UV. I'm noticing a lot of wierd color lines when I bump up saturation and vibrance to 100 in PS Raw. Both IR and UV photo show this on the building's railing; I usually get rid of it by using Color Noise Reduction in PS Raw.

 

@photoniFor IR photos (like with Hoya R72) I only bump up saturation and vibrance, and play around with Temperature and Tint until I find a nice balance of the colors (all in PS Raw); I usually end up with blue or purple-ish skies and orange or pink-ish foliage - usually, different lenses and light conditions create different false colors.