9" x 9" lensboards for 12" & 24" Aero Ektars- whodunit?

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Murrayatuptown

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Whitey Morange once told me he had a friend who put a 24" f/6 Aero Ektar on a 9" x 9" Deardorff lens board, confirming it was indeed possible. I don't know, however, what his cells were mounted in...one of the shutters, or barrel converted.

I did fit a 12"/2.5 AE that was barrel mounted, on a 9" square board and tried it in a wooden box with gorilla-sized wood strips mimicking the typical LF lensboard method. Never mind that the whole mess was close to 25 pounds heavy. It was a proof of concept (or proof of insanity).

The problem with my 24/6 AE in K-18 shutter is that the shutter diameter is between 8" & 8.5". I don't remember the dimension (8.4-ish, IIRC) but there isn't much room, which affects the amount of clearance required to put a lensboard flush into a cavity and drop another wood plate retainer. I used 3/4" plywood for the board and retainer strips.

If I don't ask, I won't know...anyone do this previously?

It doesn't look impossible, just very awkward. The focus adjustment bushings (hollow posts with threads at one end) make the shutter sit in front of the lensboard be the same distance as shutter-to-back-edge-of-rear-cell.
 

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Murrayatuptown

Murrayatuptown

Subscriber
Joined
Jun 12, 2021
Messages
109
Location
Holland, MI, US
Format
Digital
Whitey Morange once told me he had a friend who put a 24" f/6 Aero Ektar on a 9" x 9" Deardorff lens board, confirming it was indeed possible. I don't know, however, what his cells were mounted in...one of the shutters, or barrel converted.

I did fit a 12"/2.5 AE that was barrel mounted, on a 9" square board and tried it in a wooden box with gorilla-sized wood strips mimicking the typical LF lensboard method. Never mind that the whole mess was close to 25 pounds heavy. It was a proof of concept (or proof of insanity).

The problem with my 24/6 AE in K-18 shutter is that the shutter diameter is between 8" & 8.5". I don't remember the dimension (8.4-ish, IIRC) but there isn't much room, which affects the amount of clearance required to put a lensboard flush into a cavity and drop another wood plate retainer. I used 3/4" plywood for the board and retainer strips.

If I don't ask, I won't know...anyone do this previously?

It doesn't look impossible, just very awkward. The focus adjustment bushings (hollow posts with threads at one end) make the shutter sit in front of the lensboard be the same distance as shutter-to-back-edge-of-rear-cell.

I may be incorrect in saying Deardorff. I think he actually said banquet camera...the huge things with cast iron claw feet like a bathtub.
 
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Murrayatuptown

Murrayatuptown

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Joined
Jun 12, 2021
Messages
109
Location
Holland, MI, US
Format
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I think aluminum, like 1/8" or 1/4" retainers instead of 3/4" (0.7 actual) will take up less room. Just not a table saw cutdown possibility.
 
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