Support our Sponsors, they keep FADU free: AG Photographic The Imaging Warehouse Process Supplies RH Designs Second-hand Darkroom Supplies |
> Lack of separation of frames using 120 film |
*** Click here for the FADU 2015/2014 Yearbooks *** |
|
Thread Tools | Search this Thread | Display Modes |
#11
|
|||
|
|||
Quote:
Richard
__________________
jerseyinblackandwhite.blogspot.com |
#12
|
||||
|
||||
I have a Kiev 60, a wonderful clunky, shiny, brick of a camera, which has this problem, pretty much built into it at the factory.
There is a trick to loading that will mostly sort it, but as I cant always get it quite right. I have created a couple of spools where I have wrapped a short length of film around the centre of the spool to alter the amount the film travels per spool rotation, just to increase the spacing per frame. A bit of a bodge job, but does the trick. Funny old things cameras aren't they Ian
__________________
Learn to live, live to learn |
#13
|
|||
|
|||
Lack of separation of frames using 120 film
I’m sure film and paper thickness can make a difference. I remember trying to load some Agfa colour film in a Lubitel TLR. It was a struggle to wind the film on, due to either the film, or paper being very thick. I seem to recall that XP2 was also thicker than normal B&W films.
Alex Sent from my iPhone using Tapatalk Pro |
#14
|
||||
|
||||
Spool size will not and can not make any difference. The effective spool diameter increases as film is wound on to the take-up spool or decreases as the film is wound off the film spool. If the frame spacing was controlled by the number of turns of the spool, the frame spacing would change considerably from the start to the end of the film.
Most (all?) medium format cameras measure the amount of film by the number of rotations of a roller. So long as the roller is rotating properly, frame spacing will be correct. Sent from my 8070 using Tapatalk |
#15
|
||||
|
||||
Quote:
Spool size can and does make a difference. I’ve proved it to myself using my Zeiss Super Ikonta IV. You can read about it here: http://zeisscamera.com/articles_spacing.shtml Sent from my iPhone using Tapatalk |
#16
|
||||
|
||||
Quote:
Camera manufacturers built in a mechanism to adjust the amount of film wound on as the film progressed through the roll. The mechanism is tricky to design but assumed it knew the thickness of a film - change the film thickness and/or the backing paper and the whole adjustment trick goes out of the window. Think about it - if you consider the diameter of a roll of either 35mm or 120 - at the start of the film the advancing roll is small - but easily more than double by the end. If the camera only allowed a constant ?? turns each time - the film spaces would small at the start and more than double at the end. I think Leica solved the problem first - in the 1930s - and everyone else followed suit (camera historians feel free to correct me) Martin |
Support our Sponsors, they keep FADU free: AG Photographic The Imaging Warehouse Process Supplies RH Designs Second-hand Darkroom Supplies |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Lack of Contrast | John King | Colour film | 24 | 4th April 2015 12:38 PM |
Lack of Saturation | John King | Colour film | 3 | 27th September 2013 05:11 AM |
Film (lack of) availability | arcr1 | Monochrome Film | 3 | 22nd September 2011 09:40 PM |
Strange lack of development | vincent | Monochrome Film | 18 | 19th May 2010 08:33 PM |
The lack of cold VC papers | Steve O | Monochrome printing techniques | 20 | 4th May 2010 11:52 AM |