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Thanks Steven, it's odd that Gandolfi chose to use steel rods when everything else is brass.
Not seen that book, may seek out a copy. The cover camera looks like a copy of mine - or perhaps it...

UPDATE.
On removing the rear standard from the guide rails it was immediately obvious where the problem lay.
The rods that go from top to bottom of the rear standard are made of steel and were well...

Thanks everyone.
I agree that they must be for locking the rear standard in place, the problem is that currently they don't.
It looks like I'll have to unscrew a few screws last tightened by Louis...

I have just acquired an almost mint Gandolfi Universal, dating from around 1900-1920, stamped with Louis Gandolfi's name inside. It has a perfectly good original Ross Xpress 6 inch f4.5 lens with no...

It is indeed easy to get hold of in the UK. The main stockists of raw chemicals, Silverprint, sell it.

I haven't bought from them yet as I still have a supply from way back, but I thought I'd...

Thanks to all for the helpful responses - much appreciated.

I have an opportunity to purchase a Sinar P2 8x10 back and bellows, but I have a 5x4 Sinar P.

Are Sinar parts interchangeable between the two ?

Thanks in advance for any replies.

It is a great shame that what used to be a reasonable read at a reasonable price seems to have taken a bit of a nose-dive since the new editor took over. I've stuck with it, so far, simply because I...

The threshold exposure is a very good idea.
In addition, we always used to lay a large coin on the paper before exposing to threshold light/safelight. It made it much easier to judge if there was...

Just to keep this question live: Does anyone know if there is a European supplier for this Russian paper?
It used to be available in the UK from RK Photographic I believe, but supply was rather...

A while ago I posted about three f.18 Protars, 8.5cm, 14cm and 32cm I had acquired. All have f-stops marked at 18, 25, 36 and 50 although they stop down slightly beyond 50 in every case. The 8.5cm...

An update, following a very speedy response from Larry at Zeiss Historica and some further research I've carried out.

The Zeiss 1921 catalogue lists the lenses as follows:

Protar 8.5 Lens for...

Thank you to everyone who has responded to my request - this really is a very useful and helpful forum.

The link to Zeiss Historica was particularly welcome and I have passed my query on to that...

Thanks for the information Dan - I'd not encountered the Protars before and my guess was based on the fact that Edwin Smith used a quarter-plate camera for most of his work, alhough he did own a very...

I would like to tap into the collective wisdom of this very informative group for information on three recent acquisitions.

They are three shutterless Carl Zeiss Jena Protars, all in excellent...