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  1. Replies
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    Re: Enlarge lens 150 vs 135

    OK so that's the second-to-last one.
    I've often wondered if the lens design is the same as the final ones though.
    The last ones have better multicoatings and the different body with the...
  2. Re: Rodenstock 360mm f4.5 eurygon from 1945-1951

    I can believe that Abbe could work this out. I wonder when that was ?
    The Cooke triplet was by H. Dennis Taylor at Cooke, I believe the UK patent was from 1893, and the US patent from 1895, but he...
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    Re: Need Grubb Lens Expertise

    Very good indeed !
  4. Re: Rodenstock 360mm f4.5 eurygon from 1945-1951

    What a great find - this is a really impressive lens.



    Tell me more, Arri ... about Abbe
    PM me if you don't want to divert this thread.
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    Re: Dry Mount Tissue

    I have an unused roll bought c.2012 upstairs.
    Would you like me to check if I can find the brand ?
    It was probably bought from Firstcall Photographic in the UK.
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    Re: Fomapan 200 pink : fixer change

    Probably the easiest option.
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    Re: Best Way to clean Ground glass.

    Yes.
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    Re: Fomapan 200 pink : fixer change

    Yes, so use with caution.
    I did mix up and try WD2H recently ( a minor variant on WD2D+ ) and found very little image stain on the Fomapan, which was not what I expected, given the more alkaline 'B'...
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    Re: Fomapan 200 pink : fixer change

    Eg. here, Page 4 :
    It's a option he gives for removing anti-halation dyes.
    https://stores.photoformulary.com/content/01-0155%20.pdf
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    Re: Fomapan 200 pink : fixer change

    Ah Ok that saved me some problems.
    However I don't want to prolong the pre-wash too much, while the Pyro has been mixed and is oxidising.
    Does John Wimberley's wash combination (above) make more...
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    Re: Fomapan 200 pink : fixer change

    Yes, I switched from an alkaline fix to an acid fix yesterday, that was the change. So it makes sense you never have problems with TF-4 , I didn't with Moersch.
    Everything else is fine.
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    Re: Fomapan 200 pink : fixer change

    Thanks Michael, the sodium sulphite worked a treat.
    The dye was gone within 2 or 3 minutes.
    I will try some in the pre-wash next time.

    Thanks for the others who replied too.

    Dave - I like the...
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    Re: Fomapan 200 pink : fixer change

    OK thanks. It was fresh fix ( made up tonight ) and about a 20min wash, but let's see what the sulphite/sulphite bath does tomorrow. I will report back.

    Edit : just found another relevant comment,...
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    Re: Fomapan 200 pink : fixer change

    OK thanks. I just bought some new sodium sulphite to help with the FB paper toning process.
    Can I apply this after the fact ( eg. tomorrow ) ?
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    Fomapan 200 pink : fixer change

    Hi All
    I have developed a few small batches of Foma 200 5x7" recently, but fixed them all with an existing bottle of Moersch alkaline fix.
    Today I discarded that and mixed up some 1+4 Hypam.
    I...
  16. Thread: Wales in the UK

    by Mark J
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    Re: Wales in the UK

    Paul sums it up very well.
    All you need is some sunshine... been in short supply recently.



    https://i.ibb.co/HnXSBWR/Cleavage-Dinorwig-Quarry-2001.jpg
    ...
  17. Thread: odd lens mount

    by Mark J
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    Re: odd lens mount

    Projection TV lenses were F/1.2 or faster !
  18. Replies
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    Re: Enlarge lens 150 vs 135

    Alan you are more or less correct, though a 135 is generally fine to 6x. I have spent a lot of time looking at datasheets recently for my own purposes ( to enlarge to 16x20" ) but for...
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    Re: Enlarge lens 150 vs 135

    Interesting. I sold a Nikkor 50/2.8 N recently but kept the 63mm. I bought an Apo-Rodagon N 50 at a good price. I should really check performance of the 63mm against this, for interest.
    It's an...
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    Re: Enlarge lens 150 vs 135

    63mm ?
    I have the 63mm f/2.8 'N', the earlier one I think was f/3.5 ?
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    Re: Enlarge lens 150 vs 135

    Thanks, I dug out some of the info on that one.
    It's interesting that it's a double-gauss type construction, unlike all of the other premium brands which are Plasmats. I wonder if the 105 is the...
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    Re: Post Your Smaller Format Trees!

    Nice subject !

    Here is a Beech, Infra-Red, old Llangwyfan woods, Denbighshire, May 2023
    Fuji GW690 III with Rollei Superpan 200 & Hoya R72. Dev in PMK.
    The neg was overexposed by about a stop,...
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    Re: Deranged Aperture Blades

    How do you know which blade to put on first, and how do you know whether they go on anti-clockwise or clockwise ?
  24. Replies
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    Re: Enlarge lens 150 vs 135

    It should be great.
    I think this market has got very confused with people using enlarger lenses for macro 35mm work. Maybe the older El-Nikkor 135 has some cult following ?
    I myself just went...
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    Re: Deranged Aperture Blades

    Yes, agreed.
    I received a 100 Componon-S from the US this week, it was loosely wrapped in bubble wrap, without any sellotape, and then stuffed into a Jiffy bag. I have no idea what some people are...
  26. Re: 8x10 shooters, can HP5 come close to Tri-X 320?

    6x9cm HP5+ in PMK for ref, I will be getting another box of 5x7" soon.
    https://ibb.co/WpSZpFy
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    Re: MF (6x4.5,6x6,6x7,6x9,6x12) B&W film images sharing

    A snowy shot here that I just printed and scanned. Sorry this print didn't get retouched...
    'Glyn Arthur lodge' ( Denbighshire, N.Wales ) March 2023

    Fuji GW690 III with HP5+
    Printed on my new...
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    Re: Enlarge lens 150 vs 135

    I have no idea what you're talking about.
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    Re: Enlarge lens 150 vs 135

    Very cool.
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    Re: Enlarge lens 150 vs 135

    I'm wondering if it's that a more 'pointed' aperture shape makes the transition between being in focus and slightly out of focus more obvious - ie. it snaps into focus a little more clearly ?

    ps....
  31. Thread: Ciao from Italy

    by Mark J
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    Re: Ciao from Italy

    Hi and welcome to the forum. Lots of good info here.
  32. Replies
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    Re: Enlarge lens 150 vs 135

    It will do that, but the pattern will be modified, with some 10-fold symmetry, and a little more energy in the rings. However the effect on MTF ( ie. for most continuous subjects) is likely to be...
  33. Thread: 180mm Componon?

    by Mark J
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    Re: 180mm Componon?

    The Ilford filters come in 6" square if you want. I'm doing more or less what ic-racer is doing , with a 210 Schneider. Currently I'm just resting them on an empty red-filter holder, but there's a...
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    Re: Enlarge lens 150 vs 135

    Well, you're not looking for bokeh on an enlarging lens.

    There must be some reason Schneider did this, and I'm not sure why. it's not a cheap diaphragm either, it's dual-layer.
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    Re: The Ortho Look On Pan Film

    Surely a strong-ish Cyan filter is what's needed ?
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    Re: my show, "Bearing Witness"

    That's a lot of hard work to frame up that many prints. Nice shots !
  37. Replies
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    Re: Enlarge lens 150 vs 135

    If from 2005 it will be the final version of the Componon-S, the ones with the blue illuminated scale. You'd have to go back pre-80's for it to be a 'Non S' .
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    Re: Enlarge lens 150 vs 135

    I would advise testing that you get the quality you need in the corners with a 135 Nikkor at higher magnifications.
    On paper you can see ( from looking eg. at all Schneider Componon-S lenses ) that...
  39. Thread: 5x7 enlargers?

    by Mark J
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    Re: 5x7 enlargers?

    Yes, I'm not sure still that I am 100% sure of every control.
    The DeVeres are well know for their front controls, but I did find the focus on the 504 rather too coarse, it could have done with a...
  40. Thread: 5x7 enlargers?

    by Mark J
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    Re: 5x7 enlargers?

    Yes, the DeVere 504 is more solid than a 138 S. I used one regularly, years ago. You would not ( like I did on Monday ) knock the enlarger head off-centre slightly by catching your head on the neg...
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