Comments on: Filtering Protruding Front Element Lenses

By: Leigh Engroff

Leigh Engroff — Wed, 30 Dec 2009 16:40:53 +0000

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By: Mike V

Mike V — Thu, 12 Nov 2009 13:08:46 +0000

Using a filter on the rear of a wide lens can easily put the collimation out and your images will be soft because of the shallow depth of focus on a wide lens.

I don’t know why stills guys make such a big deal of this, you just use a matte box or a filter holder that clamps on to the outside of the front of the lens.

You just have a different step-down ring for every diameter lens that you want to use.

Otherwise you can use a rod system to mount the matte box.

If the filter vignettes then you just use a bigger one.

By: Torben

Torben — Mon, 09 Nov 2009 14:51:35 +0000

Those will unfortunately not work on a FF camera, as most pop-eye type lenses are made for FF.

By: Charles Bronson

Charles Bronson — Wed, 04 Nov 2009 05:51:12 +0000

I’d be wary of buying a lens with a protruding front element for this exact reason.

By: Me, and only me

Me, and only me — Tue, 03 Nov 2009 20:15:22 +0000

Yes, I was wondering why Lee wasn’t being considered. There are other filter makers also. So I’m not exactly sure what the beef is here.

By: Me, and only me

Me, and only me — Tue, 03 Nov 2009 20:08:39 +0000

Doubt it. OP is not the only one. I also suspect that CRG doesn’t really understand the web technologies he’s playing with. For example, the effect of NAT on IP banning.

By: shotfun

shotfun — Tue, 03 Nov 2009 15:53:26 +0000

protruding…….hahahahahaha

By: ReporterPhoto

ReporterPhoto — Tue, 03 Nov 2009 12:32:14 +0000

Sounds good, looking forward to this, canon and nikon hand in hand yeah ^^

By: way outside the box

way outside the box — Tue, 03 Nov 2009 01:05:55 +0000

how about just a filter over the eyes of the viewer?

By: Paul

Paul — Mon, 02 Nov 2009 22:18:01 +0000

Maybe this triggered conditional number two?

By: menos

menos — Mon, 02 Nov 2009 19:06:16 +0000

What about this quite old idea: http://www.teleskop-express.de/shop/index.php/cat/c135_Astrofoto—-Filter—Umbau-DSLR.html

By: Richard

Richard — Mon, 02 Nov 2009 17:36:00 +0000

for graduated (rectangular) filters that can move up and down in a slim/thin dust proof system

By: Richard

Richard — Mon, 02 Nov 2009 17:32:08 +0000

Why not try a (light- anddust proof) filter system between camera and lens?