Blue Mud Dauber - Opinions?

Images taken in a controlled environment or with a posed subject. All subject types.

Moderators: ChrisR, Chris S., Pau, rjlittlefield

zed
Posts: 46
Joined: Thu Feb 07, 2019 1:35 pm
Location: Houston, TX
Contact:

Blue Mud Dauber - Opinions?

Post by zed »

Hi All,

I want to solicit people's opinions here on what you think of the following images:

The first is a portrait of a Blue Mud Dauber (Chalybion californicum) taken with reflected light.

Image

The second image is the same stack - but the eye has been overlayed with an auto-fluorescence image collected with UV LED.

Image

I took this step because I wasn't terribly happy with the illumination of the eye in the reflected image - I think the antennae drops a shadow that is hard to deal with.

Do you have a preference?

pbraub
Posts: 66
Joined: Fri Feb 02, 2018 1:23 pm

Post by pbraub »

Hi Zed,

these are both great images. Thank you for sharing! I like the first one better - the steel grey of the eye complements the metallic blue better than the uv fluorescent light blue. The shadow doesnt bother me at all.

Kind regards
Peter

Smokedaddy
Posts: 1710
Joined: Sat Oct 07, 2006 10:16 am
Location: Phoenix, Arizona
Contact:

Post by Smokedaddy »

Excellent, very nice.

RDolz
Posts: 89
Joined: Mon Aug 28, 2017 9:32 am
Location: Valencia (Spain)

Post by RDolz »

Excellent images (both)! :smt038

Can you tell us the technical aspects: what lens, or combination of them, have you used, .... camera, magnification, etc?

Best
Ramón Dolz

Scarodactyl
Posts: 417
Joined: Sat Apr 14, 2018 10:26 am

Post by Scarodactyl »

Personally I prefer the first, though both are great. The reflected light has a cinematic look to it. It would be a great element for a movie poster.

zzffnn
Posts: 1826
Joined: Thu May 22, 2014 1:25 pm
Location: Boston, Massachusetts, USA
Contact:

Post by zzffnn »

Both are very nice. With the antennae shadow fixed, I would prefer the first one.

Maybe add two more lights to reduce shadows, one tilted at 12 o'clock position of the frame, and a second tilted at 2:30 o'clock position.
Last edited by zzffnn on Wed Jun 26, 2019 4:01 pm, edited 1 time in total.

mawyatt
Posts: 2479
Joined: Thu Aug 22, 2013 6:54 pm
Location: Clearwater

Post by mawyatt »

Zed,

Both are really nice, great detail and clarity, but like others I prefer the 1st. Interestingly, I like the shadows on the 1st, they give a sense of depth for me.

Best,
Research is like a treasure hunt, you don't know where to look or what you'll find!
~Mike

rjlittlefield
Site Admin
Posts: 20977
Joined: Tue Aug 01, 2006 8:34 am
Location: Richland, Washington State, USA
Contact:

Re: Blue Mud Dauber - Opinions?

Post by rjlittlefield »

zed wrote:I think the antennae drops a shadow that is hard to deal with.
Are you talking about that band of ommatidia, about half way from front to back, where each single facet appears to be split into two narrow bright sections?

I do not recall having seen that effect before, but yes, that seems consistent with ommatidia in that area reflecting a light source that is seen as split by the antenna passing in front of it.

I do find that effect pretty derailing, but even so I prefer the realism of the first image over the glowing-eye effect of the second.

--Rik

Lou Jost
Posts: 4525
Joined: Fri Sep 04, 2015 7:03 am
Location: Ecuador
Contact:

Post by Lou Jost »

I agree, I like the first, and the shadow adds volume. Both are really nice images by the way.

zed
Posts: 46
Joined: Thu Feb 07, 2019 1:35 pm
Location: Houston, TX
Contact:

Post by zed »

Thank you all for the great feedback! It looks like I will be revisiting the illumination for this guy this weekend.

There are 2 issues with the eye as Rik noted - the first is a line pattern projected by what I think is a flag I used to limit the flash on the background. I believe this is what created the line in each facet of that central band of ommatidia. I think I just moved my flash diffuser too far back and some light spilled over the flag. That stuff is so easy to miss in the single frames prior to the stacking.

The second issue is the dark band closer to the back that is the shadow from the antennae. The lighting here is from the upper right - but is somewhat side illuminated to generate the depth people have noticed. The eye might require more direct illumination. I'll have to play with this a bit.

For those who are interested - this was taken with a single studio flash, double styrofoam cup diffuser, 10X/0.28 Mitutoyo with a Nikon D850.

Lou Jost
Posts: 4525
Joined: Fri Sep 04, 2015 7:03 am
Location: Ecuador
Contact:

Post by Lou Jost »

Nice edge-to-edge sharpness. What did you use as the tube lens?

zed
Posts: 46
Joined: Thu Feb 07, 2019 1:35 pm
Location: Houston, TX
Contact:

Post by zed »

Lou Jost wrote:Nice edge-to-edge sharpness. What did you use as the tube lens?
Tube lens is a DCR-150

Post Reply Previous topicNext topic