Loupe and Stands for 4x5 Precision Plenum Photography
Focusing with GG (Ground Glass) is crude and inaccurate.
Offered here is a shimmed plenum and loupe that allows you to verify
that your emulsion plane and focal plane are aligned within .001"
by bringing both into focus simultaneously.
This allows the photographer to validate the camera system and
evaluate details that would not be possible otherwise.
Get the kind of resolution out of your equipment that would make Ansel
Adams cry. Isolate problems, calibrate and utilize equipment at the
highest possible level of performance.
With advances in sheet film scanning (the betterscanning.com fluid
scan film holder of one) you can create high quality 4x5 images that rival
several hundred dollar fluid drum scans.
Using GG is great for composition but almost useless for finely
focused precision photography. Create images reliably and consistantly
that fully exploits the 3200dpi fluid scan resolution with breathtaking
To use the plenum and loupe simply remove the Ground Glass holder.
Once Focused remove the plenum, re-insert the GG and Film Holder
(or 120/220 back) and take the picture.
Satisfaction Guaranteed or Money Back (less shipping)
Pricing Includes Full Documentation and Support
DIY fabrication of the glass and shimming it to the critical dimension.
For normal to near telephoto lenses:
$79.95 for the Loupe (default center of frame stand).
For Wide Angle Angle:
$119 for Loupe and side (of 4x5 frame) stand
$149 for Loupe, side and corner (of 4x5 frame) stand
Ready to go tested shimmed plenums
$49.95 For Glass
$49.95 For Acrylic
Tools for lp/mm Lens Measurement and Profiling
$79.95 for Microscope with Reticule and CS Target.
Transactions will be conducted via ebay and paypal.
Search for "Fine Focusing Loupe" for example listings.
Let me know you saw it here so we can customize your kit.
Shipping is $10, $20 for 4x5 plenums and $30 for 8x10 plenums
$349 4x5 kit with everything for the serious LF photographer
$449 8x10 kit with everything + corner stand (builds on the 4x5 kit)
8x10 plenums are glass only
Still in development
$149 Precision Film Holder (+/- .0005" aligned emulsion plane), USB Black Bag Camera, Documentation and Support
$249 Precision Film Holder (+/- .0005" aligned emulsion plane), Darkroom Night Vision Documentation and Support
$Not Priced yet - Universal upgrade to CCD fluid scanning systems