Go Back   Rangefinderforum.com > Cameras / Gear / Photography > Classic Film RangeFinders & Other Classics > SLRs - the unRF

SLRs - the unRF For those of you who must talk about SLRs, if only to confirm they are not RF.

Reply
 
Thread Tools Search this Thread Display Modes

Kiev 60 and similar P6-Groundglass-focussing
Old 11-19-2019   #1
europanorama
Registered User
 
europanorama is offline
Join Date: Mar 2005
Posts: 226
Kiev 60 and similar P6-Groundglass-focussing

I am about to check out which groundglass without fresnel is needed on filmlevel to check focus on kiev 60. I have results already. used laser-distancemeter at 3m, also 1m checked. Volna 80mm.
have original Screen inside. Araxfoto telling its 1.7mm thick. didnt remove yet but should be the same. have got both brightscreens of richard oleson -one has split. since they are tiny they do not fit inside back well. they cannot be trusted. they are for viewfinder.
So i tested Groundglasses of different thicknesses. also old one from HB-V, the coarse one without fresnel.
Background of this test was the idea of using ONE universal Groundglass for all my cams. Kiev 60, Bessa I(6x9), Mamiya Universal Press, RB-backs.
I have my doubts that i can use the same matching Kiev60-groundglass also on e.g.Bessa I.
First Kiev60-results:
Groundglass-thickness/Lens-scale at 3m
1.3mm/3.2m approx. since no 3.2mm-setting GG from Toyo Quick Roll back G.
2.0mm/2.8m
2.6mm/2.6m
so Groundglass must be 1.7mm to show 3m if sharp. and thats the very same dimension like Screen has.

On Bessa I with other lens-construction/bellows, which thickness of Groundglass is needed? can only test with film. i "calibrated" lens, also rangefinder but maybe wrong Groundglass used.
Have interesting report by Ron Wiesner about Groundglasses and fresnel(from archive.org) but has nothing to do with this problem here.
Other cam is nettar 6x6. and various RB- or G-backs. Graflok 23.
__________________
Michael Przewrocki
www.3dreal.ch
www.stereopan.tk
3DSTEREO-Aeropanoramas
Marspanoramas in 3DSTEREO
under reconstruction
  Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 07:50.


vBulletin skin developed by: eXtremepixels
Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.

All content on this site is Copyright Protected and owned by its respective owner. You may link to content on this site but you may not reproduce any of it in whole or part without written consent from its owner.