A great many photographers have no qualms about paying $700 for a B+W UV, Skylight or KSM filter, and many will have a swag of such filters in their kit. This bit about pricey filters is a point that Zeiss also presses when you come away with their flagship E-mount lenses.
The differences between Chinese (where quality control is non-existant) and higher end marque brands are in the quality and spectral definition of the coatings (front and rear), the type of material used in the mount, water resistance between mount and glass and particularly, in the case of polarising filters, the quality of the polarising material, sealing and planar finish of the glass.
Your argument is based on the assumption that a higher price equals higher quality, which is not always true.There is a correlation between the quality of the filter you slap on the front of your lens and the resulting image. Amateurs will debate this point endlessly to and fro, but from a professional standpoint, it is true and holds.
Thirty years ago, a polarising filter would set me back $32, and that made me cringe. The price increased with the size of the filter, nothing new there, then or now. Today, filter prices are a point of much contention, hubris and misunderstanding, v.i.z.: "why should I buy a German filter when I can buy one from China for a tenth of the price -- what rip-offs!"
Chinese filters are the least likely to be the choice of serious photographers intent on gaining maximum image quality for their investment, especially lenses which are highly corrected e.g. ED, SLD, CfA2, asph/mixed) -- this is one point many photographers don't understand nor appreciate. The differences between Chinese (where quality control is non-existant) and higher end marque brands are in the quality and spectral definition of the coatings (front and rear), the type of material used in the mount, water resistance between mount and glass and particularly, in the case of polarising filters, the quality of the polarising material, sealing and planar finish of the glass. I can guarantee that you will see a disturbing fall in quality if you are putting on a $5.00 Chinese filter on a $4,500 Zeiss Batis lens. In best practice you would not put any filter at all on such a lens. What would you be trying to prove by saving cost at the expensive of imaging quality?
A great many photographers have no qualms about paying $700 for a B+W UV, Skylight or KSM filter, and many will have a swag of such filters in their kit. This bit about pricey filters is a point that Zeiss also presses when you come away with their flagship E-mount lenses.
I've long been amazed how some companies (B+W) have conned so many into thinking their products are so superior. My god, B&W filters are long ago some kind of rocket science.
Where moisture enters a poorly constructed polariser (as a good example), the laminate will be compromised. Bubbling and smears visible in the filter are symptomatic of this. Immerse a B+W KSM C-POL in soapy water. Leave it there for 4 hours, bring it out. Let it dry. Tell me what you see. No water penetration because it is a sealed system (these filters also do not break easily when dropped). You pay a steep price for this, but is a filter a long-term reliable investment (like the S-K lenses), or something you prefer to throw away after 4 rolls?What is the idea of a watertight mount??
The threads on the top line filters are much more likely to be brass than aluminum. They are constructed in a much better way.
My criteria, more and more, is can a viewer know the difference? Film, developer, technique, filter brand/source.
Matt, that is too simplistic. Brass mount filters may be constructed better, especially of you compare them to bargain consumer filters (such as "protection" filters sold to uninformed buyers in the 1970s and 1980s - well, maybe even today). But the main reason for using brass on the filter mount is to precent seizing when a filter is left attached to an aluminum lens for a long period (weeks or months). And brass is low friction. But an older aluminum filter from one of the major brands (Canon, Olympus Nikon, etc.) will be just as well assembled and will be fine on an aluminum lens as long as it is not over-tightened. As for the coating, that will vary from filter to filter. Some are uncoated, some single anti-reflection coated, some multi-coated.The threads on the top line filters are much more likely to be brass than aluminum. They are constructed in a much better way.
Many here will probably not agree with me but I still prefer "screw-in" adapter rings with "drop-in" filters. Good quality drop-in filters and extremely hard to find other than new. I like to use sunshades with these adapter rings also. With the proper step-up rings on the smaller diameter lenses I can have one size filter fit all of my lenses. This is the way things were done 50, 60 years ago and I find works pretty darn good today........Regards!Adjusting for inflation from '89, a now low demand filter currently going for $20 has slightly more than doubled in price from your initial $5.
Compared to what I'll spend on the rolls of film I'll use behind these filters, I don't think the lower end options seem all that expensive at their $15-25 range from a reliable retailer.
You are right, my post was poorly worded. It ought to have been:Matt, that is too simplistic. Brass mount filters may be constructed better, especially of you compare them to bargain consumer filters (such as "protection" filters sold to uninformed buyers in the 1970s and 1980s - well, maybe even today).
An FYI.
I remember buying basic B&W contrast and polarizing filters for, say, $5 thirty years ago. Now, I see mostly $20 and up. Beyond inflation. Not the proverbial rocket science technology.
I found a source on eBay, Chinese, of course. I bought three 67mm filters for under $14. This particular vendor had a long shipping time, but they came a week before first date promised. Interestingly, from a business viewpoint, apparently shipped to a USA address and then forwarded. Whatever.
The hard plastic cases were made for retail display on pegs; bulky. But if you use a soft holder, no issue.
Source: https://www.ebay.com/itm/254025852174
I would not have spent the $75 or more to buy domestic to make better pictures.
+1The threads on the top line filters are much more likely to be brass than aluminum. They are constructed in a much better way.
So?
No, you don't necessarily get what you pay for. Especially in a piece of flippin' colored flat glass.
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