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  1. Re: Do you get sentimental about your lenses?

    Well said.

    IMHO this thread (for once) isn't about judging lenses, why you shouldn't be using a lens, why another one will do just as well... but simply sharing the love we might have for them.
    ...
  2. Re: Do you get sentimental about your lenses?

    Not sentimental (which almost implies looking back on something that has been lost, or is from a different, bygone age) but I'm certainly very fond of a couple of lenses that seem to have special...
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    Re: How do I remove this Sinar part?

    Thanks - the knowledge, experience and enthusiasm of the folks on this site is always appreciated :)
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    Re: How do I remove this Sinar part?

    (Of very little interest but if it helps someone else...)

    It was simply glued on, presumably before they drilled and tapped the holes for the bolts.

    230945

    I just gripped the silver part in...
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    Re: How do I remove this Sinar part?

    Thanks, I'll continue trying tomorrow.
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    Re: How do I remove this Sinar part?

    Hi Bernice, thanks for the rapid reply.

    I've already removed the two bolts (they thread through into the black frame) and the grub screw at the end of the block (this compresses a spring and a...
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    How do I remove this Sinar part?

    I'm hoping someone has come across this before...

    Before I resort to the fairly ugly solution of hacksaw and file - does anyone know how to remove this silver aluminium part from this Sinar...
  8. Re: My LED enlarger lightsource instructions / Complete parts list and build

    Philip, many thanks for these notes, very useful. I see also your thread LED enlarger head questions, elgatosuizo's design.

    I think plenty of empirical testing is the way forwards at the moment. I...
  9. Re: My LED enlarger lightsource instructions / Complete parts list and build

    Can I have some advice from those who have built an enlarger using this excellent controller?

    I have built the controller and am now drawing out the enlarger itself (this is a DIY build not a...
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    Re: 5x7 holder depth to septum

    Once again thanks to everyone for your replies and the great advice therein. The breadth of knowledge and expertise on this forum is remarkable.

    I realise now I wasn't measuring even remotely...
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    Re: 5x7 holder depth to septum

    Thanks all for your input, fascinating as always. It's almost a case of the more you know, the more worried you could be... Those ULF guys must have the potential for real issues with film flatness....
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    5x7 holder depth to septum

    This query might be better filed under the 'you're just being paranoid' section but...

    All the specs I have seen for the distance from the outer face of the film holder to the septum (for 5x7)...
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    Re: Large Format Landscapes

    Wow, that's a wonderful image.

    Did you use some tilt or a small aperture (or maybe both)?
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    Re: Post Your Waterfalls

    It's dolerite, part of the Whin Sill. Molten rock was injected between layers of sandstone and limestone, and (being very hard and resistant to erosion) forms many prominent features in...
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    Re: Digital IR

    https://live.staticflickr.com/65535/52157645605_b6a5d46b64_o.jpg
    Clouds again by Peter Brooks

    Evening light yesterday. Spot the lead mining chimney way up on the horizon, more or less just a...
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    Re: Digital IR

    Geranium Renardii

    https://live.staticflickr.com/65535/52123943099_55f1e897a5_o.jpg
    Geranium Renardii by Peter Brooks
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    Re: Digital IR

    I've seen this as well in foliage, could it be areas of highly active photosynthesis? Rather than the older and somewhat jaded growth?

    Maybe someone with the appropriate biology / physics...
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    Re: Digital IR

    Great shots everybody! :)

    I love clouds in IR too... here's one from 2014:

    https://live.staticflickr.com/5585/14755926556_fa63e00c12_o.jpg
    Near perfect clouds by Peter Brooks

    The same...
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    Re: Digital IR

    A House Leek growing on our wall.

    https://live.staticflickr.com/65535/52097257575_a0502a99a8_o.jpg
    House Leek (Sempervivum tectorum) by Peter Brooks

    Self-converted D200 (750nm), 28mm f3.5 AI'd...
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    Re: Digital IR

    Thanks all. I really like the way that tree trunks and branches stay dark and provide great contrast with foliage and grass (like Peter's riverside shots).

    Another from yesterday. The sheep have...
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    Re: Digital IR

    Out with the dog on our regular route this morning. Overcast but still plenty of light, how different (and wonderful) the every-day looks in IR :)
    ...
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    Re: Digital IR

    Wow... looks like giant waves crashing over the trees.

    For once movement is advantageous :)
  23. Re: UK Lens repair and shutter installation for Cooke Aviar

    Sorry, I haven't tried it yet... but the Aviars / Aviaricas are highly regarded, a dialyte design I believe.

    Maybe balance the cost of the aperture repair against the value of the lens in a...
  24. Re: UK Lens repair and shutter installation for Cooke Aviar

    Snap! I have the identical lens, right down to the 'X5' and 'Copying'!

    227045

    Just to show you what can be done in the way of shutters Jose at Custom Photo Tools (in Portugal) made me this...
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    Re: Measuring old lens threads

    I'm doubtless stating the obvious here but if they are Whitworth threads do they comply with the RPS standards? For instance TTH standard lens ranges use flanges of 1, 1, 1, 2, 2, 2, 2,...
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    Re: Measuring old lens threads

    Randy are you thinking of Jose at Custom Photo Tools?

    Great work as you say, he made me a flange for an Ilex #5, and a 2" Whitworth to Ilex #5 adapter so I can use my TTH RVP (and other TTH barrel...
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    Re: Advice on lense (comparing 2 options)

    This doesn't answer your specific question but this page on large format portrait lenses is a good read:

    https://www.largeformatphotography.info/portrait-lenses/
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    Re: December 2020 Portraits

    I'd really like to know as well, I'm building a 5x7 enlarger - and I really like using paper negatives!

    It must be very different to enlarging from film? Any advice would be much appreciated.
  29. Thread: PPE lens

    by peter brooks
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    Re: PPE lens

    Mark, many thanks for all that info. It's great to have some history recorded here for others to find in the future - and good to know that the business is still going!

    As for the lens - I still...
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    Re: Compur shutter questions

    I can thoroughly recommend Jose at Custom Photo Tools. As well as the stock range of adapters he will manufacture custom items. I've had flanges and adapters in both metric and imperial threads, and...
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    Re: Enlarger sizing

    Thanks John. What a great setup! You have the luxury of space. I'll be constrained to running (and projecting) along a 2 ft deep piece of worktop (to a corner wall to the right) but should still be...
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    Re: Enlarger sizing

    Thanks Len, yes that calculation would be really useful - if possible, could you post it here?

    (I replied here rather than by PM because it may be useful to others in the future who find this...
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    Re: Enlarger sizing

    Thanks for the tip!
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    Re: Enlarger sizing

    That sounds interesting... How will the auto-focus work?

    (Realisation that I have no idea how auto-focus works - and I might be hijacking my own thread here :) )
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    Re: Actinic focus

    Thank you Doremus for that very comprehensive answer.

    I guess my interest here is in older lenses and trying to understand how better to use those that might be not be (intentionally or otherwise)...
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    Actinic focus

    Definition by Merriam-Webster -

    Actinic focus: the focus at which the chemically most effective rays as distinguished from the visually most effective are brought together (as by a lens).

    As I...
  37. Re: Question Regarding 35mm/MF lenses for Macro on 4x5

    There are lots of folks far more knowledgable than me on this forum but I would think that it is the angle of view of the lens that you should look at - think of it as a cone, as you focus closer to...
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    Re: Enlarger sizing

    Thanks Randy. The camera thing is just to get the relevant design parameters for the different formats.

    I've already got a 210mm enlarger lens (for 5x7), plus a 7.5" Ektanon and some very useful...
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    Enlarger sizing

    I'm going to build a 5x7 enlarger but I also want to print 5x4, 120, and possibly even 35mm.

    I have seen posts about using a LF camera in reverse as an enlarger (with a light source behind the...
  40. TTH Cooke IIIB Aviar(ica) 8" F6 'X5 Copying'

    I've just bought a lovely Taylor, Taylor and Hobson (Cooke) Series IIIB 8" F6 (barrel) lens. The beauty ring says Aviar (the TTH code for these F6 varieties is Aviarica) but also 'X 5' and...
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