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portrait of potter wasp

 
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nto



Joined: 22 Feb 2008
Posts: 181
Location: Italy

PostPosted: Thu Aug 07, 2008 10:40 am    Post subject: portrait of potter wasp Reply with quote

today tried with sigma 105mm and 50mm inverted, result seems to be good, full frame, approximate scale bar is (7,4mm x 5mm)



Technical info:
350d
extension tube 25mm
105mm set to f/6.3 at 1:1
nikon 50mm set to f/4 at infinity
two flash wtih diffuser
additional aluminium for reflectance
20 frame step 0.1mm


ciao
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Harold Gough



Joined: 09 Mar 2008
Posts: 5787
Location: Reading, Berkshire, England

PostPosted: Thu Aug 07, 2008 11:54 am    Post subject: Reply with quote

A nice, strong composition with a perfectly harmonious background.

I'm not sure what is going on on top of the head. There should be three ocelli in a triangle but there are rather more bulges of about the right size.

Harold
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My images are a medium for sharing some of my experiences: they are not me.
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rjlittlefield
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Joined: 01 Aug 2006
Posts: 20286
Location: Richland, Washington State, USA

PostPosted: Thu Aug 07, 2008 12:06 pm    Post subject: Reply with quote

I suspect the extra bulges are water droplets, judging from others on the eyes etc.

The composition, lighting, and stacking are all very nice, Antonio -- well done!

--Rik
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acerola



Joined: 13 Dec 2006
Posts: 251
Location: Hungary

PostPosted: Thu Aug 07, 2008 12:07 pm    Post subject: Reply with quote

Harold: I think some of them just droplets.

Technically it is good. Maybe a little too light at some places on my monitor, and the legs are distracting a little.
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lauriek
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Joined: 25 Nov 2007
Posts: 2404
Location: South East UK

PostPosted: Thu Aug 07, 2008 12:10 pm    Post subject: Reply with quote

Nice shot! Like the 'tongue' sticking out! Also like the monochromatic silver look you've got here. Due you think that's due to the aluminium reflectors you used?

I see what Harold means about the simple eyes, but I notice some drops of water on the compound eyes (Same problem as me, too impatient to get stacking once the bug is out of the fridge!!) so I wonder if some of those bumps on the head are drips of condensation. It's definitely not a stack alignment issue as that would also be apparent in other areas of the image...

What software did you use for the stacking, and what did you use to do the focus steps?
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lauriek
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Joined: 25 Nov 2007
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Location: South East UK

PostPosted: Thu Aug 07, 2008 12:12 pm    Post subject: Reply with quote

acerola wrote:
Maybe a little too light at some places on my monitor


Yes I meant to say that as well. The flash highlight on the top of the left eye does appear slightly burnt out on my monitor too, but I appreciate this can be a difficult balancing act!

I suspect Antonio may have his screen setup slightly darker than mine!
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rjlittlefield
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Joined: 01 Aug 2006
Posts: 20286
Location: Richland, Washington State, USA

PostPosted: Thu Aug 07, 2008 12:49 pm    Post subject: Reply with quote

lauriek wrote:
The flash highlight on the top of the left eye does appear slightly burnt out on my monitor too

Monitor settings won't matter much. Portions of that area are full of 255's so they will appear pure white on any monitor.

But I assumed this was intentional, in keeping with the somewhat stark "silver" theme.

It is a vexing tradeoff.

For scientific purposes, we normally want photos where nothing is blocked up or blown out -- no pure blacks or pure whites.

But such images often are not as striking as more contrasty photos where actually some information has been lost.

Sometimes the best one can do is to shoot with slightly "flat" illumination so that everything gets captured, then punch up the contrast later if appropriate for a particular audience.

--Rik
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nto



Joined: 22 Feb 2008
Posts: 181
Location: Italy

PostPosted: Fri Aug 08, 2008 4:40 am    Post subject: Reply with quote

Thanks so much to everyone,

Rik you my thoughts centered,

global stack is 20 frames, hair and eye edges is 28 frames,
aligned with CombineZM, stacked with Tufuse,

Aluminum is used domopack, Fervi T015/E table for movement with a resolution of 0.01 mm (can also 0.005 mm Very Happy )
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Cyclops



Joined: 05 Aug 2006
Posts: 2968
Location: North East of England

PostPosted: Fri Aug 08, 2008 4:46 am    Post subject: Reply with quote

Superb, looks like its made out of metal! Fantastic shot!
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nto



Joined: 22 Feb 2008
Posts: 181
Location: Italy

PostPosted: Sat Aug 09, 2008 3:42 am    Post subject: Reply with quote

Thanks Larry, Wink
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dmillard



Joined: 24 Oct 2006
Posts: 575
Location: Austin, Texas

PostPosted: Sun Aug 10, 2008 12:12 pm    Post subject: Reply with quote

Nice portrait Antonio - I think the aluminum reflectors and the water droplets work well together to give it a metallic, Robowasp look.

David
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nto



Joined: 22 Feb 2008
Posts: 181
Location: Italy

PostPosted: Mon Aug 11, 2008 5:28 am    Post subject: Reply with quote

Thanks David,
aluminium main function has been completed reflexes eyes , and added further light facial wasp, black shadow complete feeling metal robotics Very Happy
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