- Joined
- Jul 26, 2009
- Messages
- 4,307
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- 35mm
There is absolutely nothing difficult in coating the glass that will, at a later stage serve to sandwich the color membrane/film/dye/gel...
Tiffen's thermal sandwich process allows for an especially wide selection of filter colors, but makes coating difficult, They offer just a handful of those.
There is absolutely nothing difficult in coating the glass that will, at a later stage serve to sandwich the color membrane/film/dye/gel...
Tell Tiffen that and they will ask you to come in interview and then get hired to take over running the company. Congratulations on your new career.
You go tell them that. You seem to be friends with them and know their secret processes that prohibits them to manufacture a product that is standard for all the other manufacturers...NB23 - go tell Tiffen that if you know better, not me.
2 coatings is actually Multicoating.
Besides, there is no benefit to go beyond a few coats. We are not talking Painting walls here.
Tiffen's thermal sandwich process allows for an especially wide selection of filter colors, but makes coating difficult, They offer just a handful of those.
There is absolutely nothing difficult in coating the glass that will, at a later stage serve to sandwich the color membrane/film/dye/gel...
Well, first off; Multi means “more than one”.
Secondly; drew wiley can like it or not, but the glass can be coated before the lamination. Doh.
Thirdly; I don’t understand the sudden Love and protection for Tiffen filters, the cheapest on the market. What’s up with that?
Price!!! That’s the love for Tiffen. We all can’t buy the best, Well made camera (expensive) gear etc.
I get by with all used gear. I do buy tiffen for protection, but for exposure, I use my MC filter.
Idk where is the love for film? Out there in the commercial sector??? It’s all digital love because of price!!!
High quality is expensive!!! Whether it be buying a service or a product.
Only “ so many” people have the income to buy only the best.
Well, 'scuse me for tempting a "real optical engineer" like yourself. Their process is unique. It doesn't involve dyed-en-masse glass, but a colored thermal film between two discs of glass. And yeah, they've only been doing it that way for the past 70 years, so it's perfectly understandable why you've never heard of the distinction. Everyone else has. Still in business in a niche market. They must be doing something right.
In a practical sense, there are two factors. On the positive side, it allows Tiffen to still provide a very large selection of filter colors, some now longer available anywhere else. Negatively, the lack of coatings means the filters attract smudge and condensation a lot more easily, so need to be very frequently cleaned; and of course, you also have to be especially careful to shade them to prevent flare.
I use all kinds of filters, including Tiffen when necessary. There are many important scientific and technical lab and applications for filters beside just going out trying to differentiate clouds from blue sky. Even many of the Wratten specialty gel filters are now unavailable; and some of them were always quite expensive, fragile too. So there is a real need for Tiffen. They also make certain industrial filters regular photographers are generally unaware of.
NB23 seems to know how to "easy" it is to coat glass and then cement it all together at high temp, melting the transparent colored foil in between. I do have couple of Tiffens done that way, and it's obviously still a bit dicey. They really need to hire this guy to tell them how to do it right. To him, it's as easy as a grilled cheese sandwich, which of course, isn't transparent.
In all the negativity expressed about Tiffen filters, not one specific documented piece of information has been posted so far.
I understand that Tiffen aren't the top-o-the-line in terms of filters, but never had an image fail because of using one. Most of my filters are coated or multi-coated but some are Tiffen. It's rather amazing to me that a couple of random individuals on the internet seem to know more than the filter manufacturer, who has a robust (and seemingly successful) history in making filters and providing them to critical users such as the Hollywood film crowd.
Tiffen is nowhere near the cheapest. But they do need to make a very broad selection in order to maintain their business niche. Of course, NB23 is going to loan them several million dollars to completely upgrade their R&D and manufacturing model. Good luck with transparent cheese.
There's no need to hypothetically coat the inner surfaces of the sandwiching glass because that's not an air interface like a lens. The thermal foil bonds the whole thing tightly together..... duuuuhhhhhh.
You sure follow your own agenda. For your info, there has not been specific doumented info for any positivity about Tiffen, either.
Besides, it is well documented that coated filters are better. That tiffen filter are not Coated... and so on.
It would be good if you got off your own contrarian, trolling agenda.
I understand that Tiffen aren't the top-o-the-line in terms of filters, but never had an image fail because of using one. Most of my filters are coated or multi-coated but some are Tiffen. It's rather amazing to me that a couple of random individuals on the internet seem to know more than the filter manufacturer, who has a robust (and seemingly successful) history in making filters and providing them to critical users such as the Hollywood film crowd.
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