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- Jul 14, 2011
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What do you mean by "repellant coating"? I don't have any filters so designated.
Yes. Very true. It depends on what the vendor wants the manufacturer to make at a set price point per unit. China has been able to make high-quality crafts for over a thousand years. Remember Japan was known for making inferior products back in the 60's and 70's?I've never had an issue. YMM Indeed V.
"China" is a broad brush. They make crap, and they make good stuff. But, for me, certainly willing to spend a few dollars to gamble on filter failure. One filter from Freestyle or the NYC boys buys four from China. Good odds.
Last year the PBS Nova science series released an hour-long episode featuring a close friend of mine, who built a 1/4 scale model of one of the smaller gate buildings to the Forbidden City. Then they set it on one of those huge seismic-simulation shakers, and kept ramping it up as far as possible, clear past Richter eleven,
Well, they aren't specifically designated as such, but "water repellant" (oatings/multicoatings are a feature in the overall finishing of the filter. Taking B+W filters as an example (e.g. the top line KSM C-POL, digital or other), water will readily "bead" and run off on the surface, particularly noticeable in very fine, dewy rain where it can be cleared with one breath. A few Kenko and Hoya (made by Tokina) also have this feature.What do you mean by "repellant coating"?
Then it was Taiwan's turn, and they evolved from their notorious junk phase to making superb iron castings
[QUOTE="Poisson Du Jour, post: 2168126, member: 27047"...stews or rabbits or witchetty grub broth...
Well, they aren't specifically designated as such, but "water repellant" (oatings/multicoatings are a feature in the overall finishing of the filter. Taking B+W filters as an example (e.g. the top line KSM C-POL, digital or other), water will readily "bead" and run off on the surface, particularly noticeable in very fine, dewy rain where it can be cleared with one breath. A few Kenko and Hoya (made by Tokina) also have this feature.
They seem an excellent option for more novelty/less used filters such as the IR they offer. Seemingly it's a very deep red rather than IR but for a very occasional use it should be fine.An alternative with an excellent price performance ratio are the ADOX SNAP-ON Filters:
https://www.fotoimpex.com/cameras-accessories/filters/colour-correction-filters/
Extremely cheap but with quite good quality. I was positively surprised when I tested them. No problem to make 30x40 centimeter prints from 35mm negatives.
Best regards,
Henning
I encountered them when looking for filters and got from eBay used a ND grad 0.6 and CPL in 77mm. My interest was in the former, for usage with Slide film, which anyways having a Fuji 6x9 RF I found not to really use it much. I did use the CPL quite a bit on digital, but with a 70-200 telephoto there was some loss of sharpness at large magnification which I would deem to the use of the CPL.SRB in the UK make there own filters,mounts Etc and a ;lot more, about half the price of most others, in pretty much all sizes from small to large, I have bought several from them for my classic cssmeras, and they will make to order, Quality, very good , mounts are all metel, filters are glass
Richard
as many other used listings did not have the specific Wratten Number. Infact, while researching I encountered a blog which compared different Orange filters and there is variation in the shades used, ...
Oh my goodness! Stewing rabbits - what a waste of both cast iron and good meat. The way to do it is to skewer them on a stick over a slow campfire. But don't get greasy fingers on your filters afterwards.
Where does B&W get their glass from or do they make it?It’s interesting sometimes to see two very similar, but at the same time very different markets which overlap in product use. The quality of filters and the consumer market’s race to the bottom of the barrel compared to non-consumer optical systems is one example.
In the professional optics world, colored filter glass pretty much either comes from Hoya or Schott. I’m confident in a filter that traces back to those manufacturers. I also tend to buy filters with AR coatings to reduce the risk of ghosting in the image. Those tend to be more expensive, but not insanely so. My opinion. Kodak (Wratten) used to be in that mix, but they haven’t shown much interest in that market for many years.
For completeness, more exacting filtering requires more precise filters than the colored glass we are familiar with. Dichroic or interference filters come from a host of suppliers that will be unfamiliar to the consumer market, but they have much more precise (consistent) filtering characteristics and are an order of magnitude more expensive than what we buy. Places like Edmund Optics and Thorlabs are the low-cost catalog store entry point into those types of products. Melles Griot, Semrock, Knight Optical and a host of others are more commonly used (in my industry) sources for those.
Where does B&W get their glass from or do they make it?
8. Where does B+W get its glass?
Most of the glass comes from Schott, the finest German glass manufacturer. Exceptions would be our diopters and cross screen filters which utilize high-quality optical glass.
Where does B&W get their glass from or do they make it?
Seemed like a battle between the cheapskates and the profligates to me.I don’t think anyone’s arguing, just sharing information.
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