Magnolia

[dabateman]

I was able to capture one of our magnolia flowers before they were all gone. They only last two days.

 

Lighting was two 15W germacidal bulbs for all images as was little rushed as the flower significantly darkens over the exposure time. I used the KSS 60mm macro at its f4 setting, which is closer to F8 I think.

 

I white balanced in photoninja and then was surprised that the smallest file size even when 1160x868 is still 1.57MB. So I saved them again in InfranViewer to get the jpegs down to a reasonable size. So you may be missing all the high resolution detail. I captured many of these in the high resolution mode on the EM5mK2 camera.

 

UVA image of flower, I think I used by U330WB80 improved filter for this image:

 

UVB image of flower using the 313bp25 stacked with U330WB80 improved filter:

 

UVC image of flower using 254bp25 filter:

 

 

I then ripped off the petals you see to open up the inside of the flower.

 

IR using LP 720 filter:

 

Visible

 

UVA with Baader venus U filter:

 

UVB with 313bp25 and U330WB80 improved filter

 

UVB with 303bp filter stacked with U330WB80 and U340 2mm filters ( there is very little 302nm out of my germicial bulb, I am surprised I could boost this up in Photoninja)

 

UVC with 254bp25 filter:

[Stefano]

UVC with a "normal" full-spectrum camera? That's interesting.

 

Are you sure your 254bp25 filter blocks UVB, UVA, visible and IR very well? At least OD 6-7. You need very good blocking.

 

Also, did you have a leak in the top-left in UVB?

 

Anyway, nice images.

[dabateman]

That upper right with 313bp, rotated to left is part of the fun of using dichoic filters. I should have used a hood, but I was trying to be quick.

Thats the flare off my filters.

 

Yes still surprised how good the Em5mk2 is in UVC. I have tested it before with this filter and same lighting setup. I just allows for 8 seconds exposure time so that I can use the high resolution shot mode.

 

https://www.ultravioletphotography.com/content/index.php/topic/4346-holly-smokes-the-em5mk2-can-see-254nm/page__view__findpost__p__42527

[colinbm]

Good on you Dave a very nice collection with forbidden light ;-)

[photoni]

UVA with Baader venus U filter, is the best... technique

IR a romantic dream