16-35 on FF w/ filters avoid vignette

I used the 17-40 with Hoya slim filters and Cokin P + Hitech filters on my 350D with no vignette problem. Now I'm planning to upgrade to 16-35 on the 5Dii. Obviously I need to buy the 82mm Hoya slims. But I'm not sure which Cokin (or Lee?) + square filters I need to buy to avoid vignetting. Thanks in advance for any advice.

I am assuming that you are hand-holding the GND filters in front of the screw-in CPL. You would need 4x4" ND or 4x6" (4x5", if Hitech) GND filters. I don't like Cokin filters, as I have always found their colors to be "off". Lee filters are excellent as are Singh-Ray. Hitech GND filters are very good and less expensive but are 4x5" and 1.5mm thick, vs 4x6" and 2mm thick for Lee and Singh-Ray.

If you wish to use a holder system, I would suggest the Lee, with either Lee, Singh-Ray or Hitech filters (as above). You would get the WA adapter ring (vs the standard ring) to attach the holder to the lens. Ideally, you should also purchase a 105mm CPL and fit it to the holder using the front thread adapter ring. On FF and my 16-35/2.8L II, with 2-slots plus the CPL, I can get down to 19mm-20mm. With 1-slot plus the CPL, or 2-slots without the CPL, I can use 16mm without vignetting.

You do not need slim filters on a full frame body with the 16-35 OR the 17-40. One of the biggest reasons Canon increased the filter diameter was to avoid vignetting including with standard filters. I use the regular F-Pro B+W filters on my 16-35 on my 5D and have no problems. And yes I too thought in the beginning that slim filters had to be used and went out and bought BOTH slim and normal B+W KSM CPLs and tried them both side by side and there was literally no difference.

ben_r_ wrote in post #8564372
You do not need slim filters on a full frame body with the 16-35 OR the 17-40.

That is absolutely correct. In addition, the B+W slim has no front threads. However, the new Hoya HD CPL is an excellent filter and is as slim as the B+W slim, but does have front threads.

NYPhotog wrote in post #8564586
That is absolutely correct. In addition, the B+W slim has no front threads. However, the new Hoya HD CPL is an excellent filter and is as slim as the B+W slim, but does have front threads.

Oh yea thats the other thing, I dont know about the Hoya slim filters, but the B+W have no front threads, so you cant use your standard Canon lens cap. Instead they come with this HORRIBLE slip on cap which in and of itself is enough to make you ditch their slim filters!

very interested as well, about to buy a 16-35

Hmm... I tend to leave the Hoya CP on my 17-40 (Hoya Pro1 has front thread for the cap) and slap on the Cokin P holder + Hitech GND filters as extra when needed. I just checked on the 5D, @17mm there is a little vignette showned.

Ideally, I want my setup to be in this order (if possible w/out vignetting):

16-35 » Hoya slim CP » Lee holder » 2->3 GND filters

Where's a good place to get the Lee holder and filters (beside 2filter.com)?

ben_r_ wrote in post #8564372
You do not need slim filters on a full frame body with the 16-35 OR the 17-40. One of the biggest reasons Canon increased the filter diameter was to avoid vignetting including with standard filters. I use the regular F-Pro B+W filters on my 16-35 on my 5D and have no problems. And yes I too thought in the beginning that slim filters had to be used and went out and bought BOTH slim and normal B+W KSM CPLs and tried them both side by side and there was literally no difference.

OMG, thanks for this info! You just saved me $23, and I'll just buy the regular filter.

LAD wrote in post #8567001
Hmm... I tend to leave the Hoya CP on my 17-40 (Hoya Pro1 has front thread for the cap) and slap on the Cokin P holder + Hitech GND filters as extra when needed. I just checked on the 5D, @17mm there is a little vignette showned.

Ideally, I want my setup to be in this order (if possible w/out vignetting):

16-35 » Hoya slim CP » Lee holder » 2->3 GND filters

Where's a good place to get the Lee holder and filters (beside 2filter.com)?

Whenever I use grads with a screw-in CPL I hand-hold, as it's much easier to deal with the CPL that way and there is less vignetting than attaching the holder to the CPL. If I use a holder it's lens>WA adapter ring>holder with GND or ND filters>front thread adapter ring> 105mm CPL. I also have a Lee WA hood with two slots for filters, plus a retaining ring for the 105mm CPL, thus eliminating the holder entirely - very nice and very expensive.

Unfortunately Lee holders and filters are difficult to source right now, as production was halted for a few months because a key piece of machinery broke. I understand that Lee has begun restocking its dealers, however.

LAD wrote in post #8567001
Hmm... I tend to leave the Hoya CP on my 17-40 (Hoya Pro1 has front thread for the cap) and slap on the Cokin P holder + Hitech GND filters as extra when needed. I just checked on the 5D, @17mm there is a little vignette showned.

Ideally, I want my setup to be in this order (if possible w/out vignetting):

16-35 » Hoya slim CP » Lee holder » 2->3 GND filters

Where's a good place to get the Lee holder and filters (beside 2filter.com)?

Thats because you are essentially stacking filters... NEVER stack filters.

So only use one at time? Hmm... there's gotta be a good solution...

LAD wrote in post #8570770
So only use one at time? Hmm... there's gotta be a good solution...

Also what aperture are you shooting at? Usually landscapes are shoot f/8 or smaller for that infinite DOF. At those small aperture sizes its practically impossible to get vignetting.

LAD wrote in post #8570770
So only use one at time? Hmm... there's gotta be a good solution...

Nonsense, most people stack, no problem. Re-read my earlier post. In part, I said this:
"On FF and my 16-35/2.8L II, with 2-slots plus the CPL, I can get down to 19mm-20mm. With 1-slot plus the CPL, or 2-slots without the CPL, I can use 16mm without vignetting".

The OP was asking about the 16-35 2.8 mk 2. It takes 82mm filters? How about the 16-35 2.8 mk1 on a 5D? I took some landscape shots, and a at 16mm and 2.8 there seems to be some faint vignetting going on with some non-slim filter on.

Any advice? Move to slims?

Halliday wrote in post #8801424
The OP was asking about the 16-35 2.8 mk 2. It takes 82mm filters? How about the 16-35 2.8 mk1 on a 5D? I took some landscape shots, and a at 16mm and 2.8 there seems to be some faint vignetting going on with some non-slim filter on.

Any advice? Move to slims?

I would suggest going to slim filters to avoid the vignetting.