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IR Cut Filter Source


stevme

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I worry about that price because it seems too cheap. At my local photo stores, they had two kinds of B+W filters, plain-vanilla and "MRC", and the MRC (which I think have anti-reflection coatings on both sides) were much more expensive. I'm worried that there are two versions of the cut-filter, too, because some people mention buying them at a fairly low price, while they're being sold at places like Popflash for $115. From what I read here, you need the interior anti-reflection coating. Is it possible that there are two kinds of B+W cut filters, and that the cheaper ones are NOT the ones to get?

 

JC

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I would not worry about the price, I bought 2 B+W 486 UV/IR Cut filters from them.

 

B+W 486 UV IR Cut 49mm F-Pro 56.03 euro

B+W 486 UV IR Cut 46mm Digital Pro 42.24 euro

 

All arrived on time and all were original B+W stock.

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I would not worry about the price, I bought 2 B+W 486 UV/IR Cut filters from them.

 

B+W 486 UV IR Cut 49mm F-Pro 56.03 euro

B+W 486 UV IR Cut 46mm Digital Pro 42.24 euro

 

All arrived on time and all were original B+W stock.

 

Ok. It's been pretty well established that there are two different 486 filters out there. One of them is AR coated and one is not. How do know if you are getting the coated one?

 

Rex

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Thanks for the link, but I can't seem to find the IR filters. I'm not fluent in German.

 

For language help:

 

Language Tools

 

On the Foto H site, at the bottom of the screen you will see an icon for B+W filters, then navigate from there.

 

As to price, remember I am quoting Euros, not US dollars.

 

Steve

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Ok. It's been pretty well established that there are two different 486 filters out there. One of them is AR coated and one is not. How do know if you are getting the coated one?

 

Rex

 

I'm not sure that this is clearly established. When I ordered 486 filters from Foto Huppert I had an email from Michael Huppert which read:

 

"the filter you've ordered are available in Digital PRO (the different to F-PRO is only the colour) in silver. If you want the filter in F-PRO (colour black) we could send them earliest end of december 2006."

 

which suggests that the difference is only between black and silver rims and not the composition of the filter itself.

 

Gerard

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I received 6 F-Pro filters from Photo Huppert, non of them are marked MRC although they are anti reflection coated. One side has the IR UV cut filter which may or may not be AR coated and the otherside is AR coated. Some people say they have been able to obtain filters which are marked MRC, mine are not so marked. Curiously the Schneider catalog does not show the 486 being available in MRC. I understood that the DIGITAL ones had a silver mount and are available in smaller sizes for digicams.

 

Bob.

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Ok. It's been pretty well established that there are two different 486 filters out there. One of them is AR coated and one is not. How do know if you are getting the coated one?

 

Rex

 

Rex,

 

Further to your query, as far as I know these are not MRC coated filters, well at least mine are not saying MRC on the filter and the only 2 listed in the B+W website are the F-Pro and Digital Pro.

 

Here is the blurb on them,

This B+W Interference Filter has a completely colorless glass carrier coated with a number of extremely thin, partially reflecting layers with precisely computed thicknesses, similar to MC coating. The B+W Filter 486 does not block by means of absorption, but by interference of the unwanted UV and IR radiation that is repeatedly reflected between these layers, affecting the wavelengths on both sides of the visible spectrum with a steep cut-off. It is used mainly on digital and video cameras with CCD sensors without an integrated IR protection filter, because the IR sensitivity of the CCD sensor would otherwise cause color changes and unsharpness. That unsharpness results from the chromatic aberration of the lenses that are only corrected for visible light. In the visible range, the transmission curve is very high and straight. This filter is completely clear and it requires no increase in exposure. Its filter factor is 1.

 

Attached is also a PDF for the technical stuff.

 

Also in answer to your rudeness, I was just trying to alay any fears people had about buying form this shop. The same filters that we buy here in europe for 45ish euro is costing $115 in the USA. It's nice to be able to get something cheaper for once. B+W only make 1 type of 486 UV/IR Cut but with 2 mounts, F-Pro(black) Digital Pro(silver) It is my understanding they use the same filter in both. Discussions about MRC coated filter related to a 486 filter made by another manufacturer AFIK

bwa19.pdf

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Got my B+W 486 Series 8 (for the 1.2 Noct) from Huppert today. Great service, good delivery time (filter mailed from Germany on 14 Dec., arrived today (20 Dec) in Texas.

 

Works a treat - perfectly neutral color rendition with firmware 1.09, which I installed last night after a small vodka to calm my nerves for the operation...

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Here are two images first without, then with, the following filter, obtained from Foto Huppert:

 

"B+W 41 486 UV IR CUT" shot today with my 1.5 Summarit 5cm LTM lens. The same adjustments were made in C1 to both images. Jamie's camera profile was used for both images. The colors in the second image are correct.

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Molecular Expressions Microscopy Primer: Light and Color - Interference Filters: Interactive Java Tutorial

 

The above link is a good tuttorial on interference filters. Play with the angle slider near the top of the page and see what happens. B+W does not mention this in their blurb posted above (post #13).

Tom

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I seem to recall with Rex that there are both MRC and non MRC UV/IR-cut 486's from B + W.

 

S Reid reported that his sample Leica filters are from Schneider and are marked MRC; and I know that my Schneider 486 from Edmund is not marked MRC.

 

The images posted on the forum showing reflections caused by 486's have been from the non-MRC variety.

 

Does anyone have both a 486 MRC and a 486 non-MRC?

 

Maybe B+W is marketing only the non-MRC variety, and the other is available by special order?

 

Everyone praises Foto Huppert's honesty and service; that's not the question. And their price for the filter is far less than what I paid for the same thing through Edmund Optics.

 

But I think we need to know for sure whether both types of the 486 are available.

 

--HC

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I'm not sure that this is clearly established. When I ordered 486 filters from Foto Huppert I had an email from Michael Huppert which read:

 

"the filter you've ordered are available in Digital PRO (the different to F-PRO is only the colour) in silver. If you want the filter in F-PRO (colour black) we could send them earliest end of december 2006."

 

which suggests that the difference is only between black and silver rims and not the composition of the filter itself.

 

Gerard

 

Well, I am looking at two B+W 49mm 486 filters - one marked "F-Pro" with a black rim, and one marked "Digi Pro" which has a silver rim.

 

They are NOT identical in their coatings - the silver rimmed "digi pro" one has a greenish reflection from both surfaces - the F-Pro has a more pinkish reflection.

 

I'll try to take some pictures this afternoon to show the differences.

 

Howard,

 

Neither of my samples have "MRC" marked on them .... but there are obviously coatings of both sides of both filters - the different reflections seem to indicate different coatings ...

 

DH

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Well, I am looking at two B+W 49mm 486 filters - one marked "F-Pro" with a black rim, and one marked "Digi Pro" which has a silver rim.

 

They are NOT identical in their coatings - the silver rimmed "digi pro" one has a greenish reflection from both surfaces - the F-Pro has a more pinkish reflection.

 

I'll try to take some pictures this afternoon to show the differences.

 

Howard,

 

Neither of my samples have "MRC" marked on them .... but there are obviously coatings of both sides of both filters - the different reflections seem to indicate different coatings ...

 

DH

 

Both of these filters are labelled "B+W 486 IR/UV Cut" ...

 

Here's the pic .... the differences in the reflections from the two different filters is most pronounced in flourescent light ... so I took this pic in flourescent light just to highlight the differences between these two filter designs ...

 

 

 

DH

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Here's a view just so that you can see the filter markings ...

 

 

DH

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