Mystery objects

[blakeyboy 1,811]

Does anyone recognise these two bits of optics?

 

 

[Peckris 2 2,194]

One of them looks like an enlarger lens (as in D&P films)

[blakeyboy 1,811]

Ooh...hadn't thought of that.

What's 'D&P'?

Here are a couple of pics that show the adjustments- focus, iris, and two that are pre-set in slots.

There is a photocell by the opening at the bottom as well....

 

[Peckris 2 2,194]

D&P = developing and printing, a quaint thing we used to do (or for most - have done) when photos were dependent on a strip of emulsion which, when exposed, had to be plunged into various baths of chemicals thus producing a 'negative' of the photographs. Then this had to be projected onto light sensitive paper using said enlarger, after which the paper was plunged into more chemical baths, then there was your picture!

[blakeyboy 1,811]

Oh yeah- I just didn't recognise the abbreviation...