WTB: Lee Big Stopper

[TimH]

Hi Tony - went to London the other day - met up with Nigel(s) and we wandered round town before going to see The Wall at the O2. Popped into Teamwork and had a quick looks at the LF stock - saw these. Ive no ideas as to how good /bad they are but a reputable brand, In stock and cheaper than a Lee :-

http://teamworkphoto.com/shop/index.php ... en1on324q1


regards Tim.......

[Tony B]

Thanks Tim

Not decided yet, but they are certainly in the frame. I must visit Teamwork some day if only to admire the LF stock.

Best regards

Tony

[Joanna Carter]

Hi Tony - went to London the other day - met up with Nigel(s) and we wandered round town before going to see The Wall at the O2. Popped into Teamwork and had a quick looks at the LF stock - saw these. Ive no ideas as to how good /bad they are but a reputable brand, In stock and cheaper than a Lee :-

http://teamworkphoto.com/shop/index.php ... en1on324q1

That's the new filter that Formatt told me about.

From doing some research on the web, I would advise that, whichever make of filter you get, at that density, you could find that total colour neutrality is difficult to find. And, whatever you do, don't expect them to give true colour with a CMOS digital camera chip

I must visit Teamwork some day if only to admire the LF stock.

You obviously like living dangerously I bought my Ebony from Teamwork; you never know what gems you might find.

[AlexeyD]

http://teamworkphoto.com/shop/index.php ... en1on324q1

That's the new filter that Formatt told me about.

That's excellent - they had added exactly what I wished for. I am going to give this one a go rather than waiting for Lee to catch up with demand.

From doing some research on the web, I would advise that, whichever make of filter you get, at that density, you could find that total colour neutrality is difficult to find. And, whatever you do, don't expect them to give true colour with a CMOS digital camera chip

I wonder why would you say that? What is wrong with CMOS (or CCD) sensor colour reproduction?

[Joanna Carter]

I wonder why would you say that? What is wrong with CMOS (or CCD) sensor colour reproduction?

All I know is that, on a Nikon D200, with a couple of 0,9ND filters and a polariser, I got a false infra-red colour effect on the image. I asked Formatt and they told me that it was the factory fitted filter in front of the chip that gave this problem.

[AlexeyD]

I wonder why would you say that? What is wrong with CMOS (or CCD) sensor colour reproduction?

All I know is that, on a Nikon D200, with a couple of 0,9ND filters and a polariser, I got a false infra-red colour effect on the image. I asked Formatt and they told me that it was the factory fitted filter in front of the chip that gave this problem.

How very professional of them to blame other equipment...

D200 has a CCD with a really dense IR cutoff filter which does not let a lot of IR in (so colour shifts due to IR are pretty much non existent). The cutoff filter does not affect the visible spectrum. The CFA array filters on a sensor are also much closer to RGB than on modern more sensitive DSLRs. I used D200 for the past 5 years and never had a problem with colours. It does need profiling of course especially when used with filters that introduce colour casts and WB can affect the image appearance and colour reproduction.

[Thingy]

If you lived nearer you could borrow mine. I only use it in conjuction with the Cooke PS945 when I want to do close-up floral exposures, etc in bright light with the shutter between f4.5 and f8. That's the big downside of the Copal 3 shutter - the maximum 1/125th second shutter speed.

[Thingy]

I wonder why would you say that? What is wrong with CMOS (or CCD) sensor colour reproduction?

All I know is that, on a Nikon D200, with a couple of 0,9ND filters and a polariser, I got a false infra-red colour effect on the image. I asked Formatt and they told me that it was the factory fitted filter in front of the chip that gave this problem.

How very professional of them to blame other equipment...

D200 has a CCD with a really dense IR cutoff filter which does not let a lot of IR in (so colour shifts due to IR are pretty much non existent). The cutoff filter does not affect the visible spectrum. The CFA array filters on a sensor are also much closer to RGB than on modern more sensitive DSLRs. I used D200 for the past 5 years and never had a problem with colours. It does need profiling of course especially when used with filters that introduce colour casts and WB can affect the image appearance and colour reproduction.

I was told that if I wanted to 'Do IR' I needed to get Nikon to adapt a D700 especially for IR use!!!

I'm still using my Olympus 5050Z instead - does excellent IR images.

HINT to NIKON: Could the D800 have a flippable filter infront of the CCD?
(In the meantime I'll use my F4 and Inford SFX)

[AlexeyD]

I was told that if I wanted to 'Do IR' I needed to get Nikon to adapt a D700 especially for IR use!!!

Not Nikon - they don't do it. But plenty of others do that - LifePixels for example http://www.lifepixel.com/. You can buy a kit and do it yourself as well.

HINT to NIKON: Could the D800 have a flippable filter infront of the CCD?
(In the meantime I'll use my F4 and Inford SFX)

That would be difficult to do - where would the filter go?