A place to talk about photography, the meaning of life and anything that doesn't quite fit elsewhere
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PAUL O
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by PAUL O » Tue Mar 09, 2010 4:39 pm Etc/GMT-1+01:00
Not sure if people are aware/as a matter of interest it would appear that Lee are in the process of releasing a new system of filters? These are a whopping 150mm x150mm and utilise a new type of holder. The system is designed for a NIkon wide angle zoom lens for "D" cameras
However, could this be further developed for Large Format users? Who knows!!
More details on Robert White's website - nice video explaining the system too!
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Thingy
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by Thingy » Tue Mar 09, 2010 5:43 pm Etc/GMT-1+01:00
That could be very useful. I have an Olympus 7-14mm ultra wide angle zoom lens for my Four Thirds E-3 DSLR, which cannot be used with any filters at the moment because of the fixed hood and the large hemisphere of glass poking out in front... The lens is not a fisheye type lens, so it would be possible to use it with 150mm hard grads.
http://www.olympus.co.uk/consumer/dslr_ ... _1_4_0.htm
Love is an Ebony mounted with a Cooke PS945.......
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Thingy
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by Thingy » Tue Mar 09, 2010 10:50 pm Etc/GMT-1+01:00
Love is an Ebony mounted with a Cooke PS945.......
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dave_whatever
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by dave_whatever » Wed Mar 10, 2010 10:18 am Etc/GMT-1+01:00
Don't Lee already make filters in the 130mm cokin x-pro size?
I'm not sure how much use 150mm filters are going to be for LF use. Be a pretty niche market. How many lenses are there that would require such a big filter? I imagine not many in 4x5".
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Joanna Carter
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by Joanna Carter » Wed Mar 10, 2010 11:33 am Etc/GMT-1+01:00
dave_whatever wrote:Don't Lee already make filters in the 130mm cokin x-pro size?
I'm not sure how much use 150mm filters are going to be for LF use. Be a pretty niche market. How many lenses are there that would require such a big filter? I imagine not many in 4x5".
Yes, Lee will make filters in any size. But, now they are making their own larger holders.
I possess the Schneider 72mm Super Angulon XL and could really have done with such a large holder instead of having to make do with the 130mm Cokin one. I have had occasion to require both polarising and grad filters on this lens and even the Cokin holder can give vignetting problems in some situations.
Reassure yourself - stroke an Ebony
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dave_whatever
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by dave_whatever » Wed Mar 10, 2010 12:50 pm Etc/GMT-1+01:00
Time to reach for the blutack!
I must admit that the Lee holders are worlds ahead of cokin, when i went from a cokin p holder to Lee you could feel straight away it was a lot smoother and easier to use.
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Nigels
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by Nigels » Wed Mar 10, 2010 1:40 pm Etc/GMT-1+01:00
Do I need this? Can anybody tell me just how much vignetting I will get using the standard Lee holder and 86mm adapter ring on a Schneider 58mm XL with the 3b centre filter attached?
Regs, Nigels.
[User of Ebony 45SU + 58, 80, 150 & 270 mm Lenses, and all the essential bits]
"He wears the sweeping landscape in the crystal of his eye."
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uniB
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by uniB » Thu Mar 11, 2010 10:41 pm Etc/GMT-1+01:00
I wish they'd concentrate on getting their standard sized filters made so there's enough to go round and not months of waiting for them!

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Joanna Carter
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by Joanna Carter » Thu Mar 11, 2010 11:15 pm Etc/GMT-1+01:00
Nigels wrote:Do I need this? Can anybody tell me just how much vignetting I will get using the standard Lee holder and 86mm adapter ring on a Schneider 58mm XL with the 3b centre filter attached?
The main problem I have found with wide angle lenses and filters is not just vignetting but the increase in density as the angle from centre increases. In my opionion, this is where polyester filters can be useful, in that they are a lot thinner and can cause less darkening, but, in theory, could still cause some distortions.
Reassure yourself - stroke an Ebony
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timparkin
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by timparkin » Fri Mar 12, 2010 12:01 am Etc/GMT-1+01:00
Joanna Carter wrote:Nigels wrote:Do I need this? Can anybody tell me just how much vignetting I will get using the standard Lee holder and 86mm adapter ring on a Schneider 58mm XL with the 3b centre filter attached?
The main problem I have found with wide angle lenses and filters is not just vignetting but the increase in density as the angle from centre increases. In my opionion, this is where polyester filters can be useful, in that they are a lot thinner and can cause less darkening, but, in theory, could still cause some distortions.
I'm not sure I understand how a thinner filter can reduce the darkening effect. Unless it has no thickness at all, light hitting at 45 degrees will still encounter sqrt(2) more material regardless of thickness. Just wondering if this is something you've seen directly or heard/read elsewhere? Having used polyester filters, they seem OK do cause problems when stacked (and scratch really badly).
Tim
Waiting for the developing bill - 2 hours (and it's so small now!)