100 or 84 mm?

[joebranko]

Is there any advantage in purchasing an 84mm graduated filter vs a 100mm?

[NorthernFocus]

Presumably you don't already own the filter mount/holder system? 100mm is better for wider angles. 84mm is less bulky and the filters might be marginally less expensive.

[Manfred M]

+1 to Dan's comments. The other advantage is that 100mm is the standard holder size across a number of manufacturers including Lee, Formatt Hitech, NISI, etc, so it is possible to mix and match from the various manufacturers. The other sizes are non-standard and you will likely have to stick with that particular filter supplier.

[dje]

Yes the wider the lens the more you have to be careful that the filter holder doesn't cause vignetting, particularly if it is thick enough to hold several filters. I used to have a 10-20mm lens with a 77mm filter thread. That's getting pretty close to 85mm. Also with the 100mm size, you have more room for adjustment of a gnd filter up and down.

Dave

[joebranko]

Thanks Dan. I have not purchased holders nor filters as yet, but am leaning toward 100mm.

[joebranko]

Thanks Manfred. 100mm sounds more logical if I'm to keep my purchasing options open.

[joebranko]

Thanks Dave. I think I will opt for 100mm

[shreds]

The one thing you haven't told us unless I missed it is the lens you plan to use it on?

Ultra Wide angle lenses usually require a 150mm filter system. (Lee & Nisi have versions that spring top mind)

100mm as said is the universal standard for most lenses though.

[joebranko]

Thanks Ian. The lenses I will use it on are:
55 -250mm Canon
17-70mmSigma , most often
11-16 Tokina. Occasionally

[Manfred M]

Thanks Ian. The lenses I will use it on are:
55 -250mm Canon
17-70mmSigma , most often
11-16 Tokina. Occasionally

Joe - I just popped the Lee Foundation kit holder on my Tokina 11 -16mm lens. I have it set up so that it will take three filters PLUS a polarizer holder. I used the Lee 77mm WA (wide angle) adapter.

I've put it on a crop-frame Nikon, which is a bit wider angle than your Canon. No vignetting at all with the setup unless I put on the polarizer. There I have noticeable vignetting until I hit 14mm. I haven't tried it, but suspect that taking things down to the more standard 2-filter slot would eliminate most if not all of that.

[joebranko]

Thanks Manfred. That is good to know. I did not want to go larger than 100 mm.