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My bad, I don't know what came over me, but I ended up pouring a bit of the stabilizer from a Tatenal kit into the BLIX...

Which leads to the question, will this only dilute the blix, or should I...

Hi Peter,
I wondered if you could help me with a comparison, from what I was reading, the 75mms apo Rodagon has nice specs at 1:1, but the review mentioned slightly lower contrast to a "modern macro...

Thanks Peter for your reply... Any lenses closer to 100mm?

Oh, and while I'm at it, what RAW converters/software are people finding works best?

Hi guys,
I know it's not exactly a light source question, but I've been having some issues with a Canon 100mm 2.8 macro (non-L) lens having a slight horizontal vignette at the bottom (?). i.e. if I...

Bummer. Do any of the tools in Cultural Heritage work with other camera files?

Just to throw out a few options for those with higher budgets:

Capture One recently released (Dec. 2014) software designed for museums/archival. Part of the software suite includes tools for...

Last of all, mainly to satisfy my curiosity, I tried narrowing the diameter of the beauty dish by cutting a mask for the outside (32cm diameter) like this:

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Then I re-ran the tests I had...

Attempt #3 - Acrylic sheet set over a masked beauty dish

This seems to hit a sweet spot.
Here's a pic of the masked beauty dish. The mask has a diameter of 21.5cm & the beauty dish is 70cm dia.
...

Attempt #2 - mirror box with prismatic acrylic sheets

I put together a box using 98% reflectivity aluminum. My thought was that the internal reflections would create a perceptually wider light...

Here's the results of the experimentation I went through to obtain an evenly illuminated light source... I'll break it into separate posts as there's a limit of 4 pics per post...


Attempt #1 -...

@ Peter, Thx, good to know about the sintered teflon... For what it's worth, for high efficiency (97% reflectivity), Anomet also has an interesting film that can be applied (adhesive backed--not good...

Thanks for replies so far.

@ Peter, OK, I'll post to the DIY lightsource thread once I get my prototypes up and running--I'm just looking for suggestions which way to take the design for now...
...

I am working on a diffuser head to capture film negatives using a DSLR & wondered if I could obtain suggestions for improving the head design...

My limitations are these: Presently it needs to be...