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  #1  
Old 26th December 2010, 11:06 AM
Niall Bell Niall Bell is offline
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Default Film holder help request

Hi All,
I’m looking for some advice about 4x5 film holders.

I bought a couple of Toyo film holders via ebay to use in a pinhole camera, but I’ve a couple of questions about their use.

1 When returning the dark-slides after exposure these sometimes catch on the edge and so damage the film. In fact I find it quite difficult to replace the dark-slide without catching the film. Is this common, and if so, what am I doing wrong?

2 When the dark-slide is removed from the holder, the bottom edges, on both sides, can be unhinged and folded out- is this the mechanism for removal of the film from the holder?

No doubt these are basic questions that will have the LF guys rolling their eyes, but in absence of anything to go by, I’d be grateful for any advice.

Thanks,

Niall
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Old 26th December 2010, 11:12 AM
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Barry Barry is offline
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The darkslide should not touch the film at any point. The hinged flap at the bottom is for loading and unloading the sheet film. The film goes 'under' the bottom guides in the film holder. The darkslide goes over the top of these guides. Easier to do than explain but I can take a photograph of a partially loaded darkslide if it would help?
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Old 26th December 2010, 11:33 AM
Niall Bell Niall Bell is offline
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Barry,
thanks. That explains it, and as ever, I now realise I should have thought of that.

I was putting the film in from the top, which meant it was in same guide as the dark-slide- and presumably that's why the film was getting snagged. I never noticed that there were two guides.

No need at this stage for a picture to illustrate, but thanks for the offer.

Regards,
Niall.
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Old 26th December 2010, 02:20 PM
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Barry Barry is offline
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Glad to have helped Niall.
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Old 26th December 2010, 08:58 PM
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Martin Aislabie Martin Aislabie is offline
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To overcome this issue (we have all done it ) I load my darkslides by placing my thumb and forefinger on the top of the film guides - to garantee to myself the firm is correctly loaded in the slide.

I also find it is not necessary to withdraw the Slide more than about half way when loading film

Martin
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Old 26th December 2010, 10:56 PM
numnutz numnutz is offline
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hope this is useful...


http://www.youtube.com/watch?v=WcjgK...eature=related

nn
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Old 27th December 2010, 07:49 AM
Dave miller Dave miller is offline
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Quote:
Originally Posted by numnutz View Post

Note, in case you haven't already found out, that some film is packed in a plastic bag within the three part film box, not foil as mentioned in this clip.
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Old 27th December 2010, 12:06 PM
Niall Bell Niall Bell is offline
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Thanks all for your help. Barry's explanation made it all 'click'.

I even made a sheet film hanger system to develop four sheets in a Patterson tank. Worked fine and has saved £35 in expenditure on a MOD system.

Only need to get the ongoing problems with the pinhole exposure sorted and we're away.

Niall
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Old 27th December 2010, 12:54 PM
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Steve Smith Steve Smith is offline
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It's always a good idea to practice in the light with a scrap piece of film.

When I bought my first film holders the seller was good enough to include a sheet for this purpose.


Steve.
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