Protective filter… or not? I say beware of filter quality.

Started 6 months ago | Discussions thread
William Curtindale
Veteran MemberPosts: 5,754Gear list
Like?
Re: Protective filter… or not? I say beware of filter quality.
In reply to Michel J, 6 months ago

I guess I'm an old stuck in the mud and will never get out of that mode.

When I order a new $2000 lens I always add a T* filter to the order and install it when the lens is received.

I am fortunate to enough to have all high quality lenses that suite my photographic needs and I have a T* filter on each.

I have used T* filters on all my lenses way back from the days when Hasselblad introduced T* coatings.  At that time I did a research project to analyze the capability and affect of T* coatings.  If I remember correctly, the T* coating thickness was equal to one third the length of green light wave length and would greatly reduce refraction / reflections inside the lens.  The signal of light passing through T* coatings would cancel unwanted characteristics and retain contrast.

I know modern lenses have coatings to handle these things but I am still stuck on using a T* filter (maybe too bad for me but that's it).

Oh, yes I have had an occasion where the filter has saved the front lens element.

-- hide signature --

A99, A900, A700, R1, w/Zeiss + Sony G Glass
My Picasa Albums: https://plus.google.com/u/0/photos/109849611643818398019/albums My YouTube: http://www.youtube.com/TheWillybug

 William Curtindale's gear list:William Curtindale's gear list
Sony Cyber-shot DSC-R1 Sony Alpha DSLR-A700 Sony Alpha DSLR-A900 Sony SLT-A55 Sony SLT-A99 +15 more
Reply   Reply with quote   Complain
Post (hide subjects)Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow