conrad_poulin Posted May 26, 2003 Share Posted May 26, 2003 Will a single coated lens, such as the 80mm hasselblad chrome lens on a 500c transition model benifit in terms of flare reduction from a multi coated filter ? I have a bay 50 to thread adaptor for this camera and am able to utilize filters from my old canon F1. However it dawned on me today that these filters are quite old now and newer filters which are multi coated might be of benifit to my old lenses. Is this the case or a waste of money? Also, what brands do you recomend and which vender ? If a filter is coated will it say so on the filter ring? Thanks to all. Link to comment Share on other sites More sharing options...
h._p. Posted May 26, 2003 Share Posted May 26, 2003 A filter can only add to the flare. The advantage of a multi-coated filter would be that it adds less flare to the overall total. By all means use multi-coated filters if you frequently shoot into the light but otherwise a good deep lens hood will be much more beneficial. Link to comment Share on other sites More sharing options...
gary_watson Posted May 26, 2003 Share Posted May 26, 2003 I'd agree that you'll probably see more consistent improvement in contrast with a proper lens hood. This seems to work on nearly any old, single coated lens, regardless of format. Link to comment Share on other sites More sharing options...
conrad_poulin Posted May 26, 2003 Author Share Posted May 26, 2003 Harvey & Gary The problem with flare only happened when shooting into a field and into the sun. I do use the standard lens shade. Perhaps a larger lens shade or my hand may reduce flare. From what you are telling me, a top quality multi-coated filter could improve or reduce as opposed to a single coated but not remove it. I do know that removing the filter for the shot is better but, I like to use N.D. and grduated filters so in this case I supose using good muti coated could help. Anyway what do you recomend for manufacturers and venders ? Link to comment Share on other sites More sharing options...
nick_wilson2 Posted May 27, 2003 Share Posted May 27, 2003 I agree that adding any filter can never reduce flare, but the advantages of multicoating a filter are the same as a lens, although perhaps the internal reflection problem is not as relevant. You do get a bit more light transmission. Some manufacturers tell you how much more light transmission there is with multicoating, and it is usually only a few percent (eg 93% versus 97% or something). Is it worth it? You do pay a lot for the extra few percent. That said, I like multicoated filters as a rule, but I have some that are single coated and, in the absence of any test, there does not seem to be too any difference on film. To your other questions, I expect that all m/c filters will say so, as this will justify the price increase. IMO, there probably isn't that much optical difference between filter brands, as long as they are comparable (eg Hoya has 4 ranges, I think). Others may disagree! There are many threads archived on filters for H/blad. See the post directly above yours for more on non-T* lenses! Link to comment Share on other sites More sharing options...
jbq Posted May 27, 2003 Share Posted May 27, 2003 The loss of transmittance caused by a single-coated (or uncoated) filter usually doesn't matter much. What you really want to avoid is to stack uncoated filters (or filters that are single-coated for the same color). The loss of transmittance does matter when you put a whole lens together, with a dozen glad-air surfaces (or more). My new multi-coated Nikkor 50/1.8D has about the same transmittance as my mid-60s single-coated 50/1.4. Link to comment Share on other sites More sharing options...
jbq Posted May 27, 2003 Share Posted May 27, 2003 I obviously meant glass-air surfaces in my previous post, sorry... Link to comment Share on other sites More sharing options...
chip_greenberg1 Posted May 28, 2003 Share Posted May 28, 2003 Conrad, I shoot similarly and try to mask as much of the sun out of the image as possible by flexing my Lindahl bellows shade around and checking the groundglass for vignetting good luckChip Link to comment Share on other sites More sharing options...
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