Hoya multicoated for 17-40

[stefanovandelli]

I am on the market for a protective filter for a 17-40 f4.

I have been looking at the previous threads on this subject and found

a strange bit of information.

 

Puppy Face on his website mentions:

"The clearance from the edge of the [17-40's] front element to the

filter threads is huge and, subsequently, normal thickness filters

such as my Hoya Super HMC UV do not vignette on full frame (36 x 24

mm) or cropped formats (1.6x)."

 

But the Hoya information on this filter tells a different story:

"Their slim profile of just 5mm avoids any vignetting problems and

makes them ideal for use with wide angle lenses. There is no front

female thread, but they do accept Hoya's push-on lens caps."

 

Questions:

 

Is the Hoya Super HMC thin or not?

 

Is the Hoya HMC (NOT super) thin or not and does it accept the Canon

lens cap?

 

Will the lens vignette on a FULL-FRAME camera if a truly normal sized

filter is used?

 

If you have this lens and you use a filter on a film body your

feedback would be much appreciated.

[rokkor fan]

The lens will not vignette with a standard sized filter on a full frame body. I use B&W F-Pro series, they are a standard thickness, and have never had a problem with it or the 16-35mm.

 

I would recommend getting a standard thickness filter with a front thread.

 

Cheers,

 

Antony

[pto189]

>> There is no front female thread, but they do accept Hoya's push-on lens caps.<<<br><p>

Do not buy a filter with no front femaile thread. Hoya's push-on lens caps are useless.

[chris_schultz2]

Rokkor's advice is completely correct. I have the 17-40mm and a standard-thickness Hoya filter, with no problems. I also agree with Philip about the need for a front thread.

[chris_schultz2]

Forgot to answer part of your original question: My Hoya is the HMC (not Super-HMC), normal thickness, no problems, and it *is* threaded in front to accept the Canon lens cap. It's the perfect filter for this lens unless just spending more will make you feel better.

[awindsor]

Hoya S-HMC are regular thickness threaded front and back. Same ring as for the uncoated, mono-coated, and HMC filters. Hoya S-HMC Pro filters are mounted in 3mm high thin rings but are thread front and back. Finally Hoya S-HMC Ultra-thin filters have rear threads but those silly push on lens caps on the front.

 

As has been mentioned elsewhere this lens does not vignette on a full-frame camera with a regular size circular polarizer on it. This is much thicker than any UV filter you will find.

[stefanovandelli]

Thanks for your answers so far. So now it is clear that a normal thickness filter will not cause vignetting, still the price difference between the HMC and SHMC is quite small for a UV filter and it would make sense to purchase the SHMC due to its better coating.

 

Alistar points out that: "Hoya S-HMC Pro filters are mounted in 3mm high thin rings but are thread front and back"

 

Is that thread deep enough to hold a standard Canon lens cap?

 

I'd like to buy this one from the web so, thanks for your help.

[marc_brackhahn2]

Yes the threads are deep enough. I have several Pro series Hoya filters and the caps fits great.

[mcgarity]

I would not believe anything Hoya says about the need for a thin filter. They have a vested interest in getting you to buy one because they charge more for them. I can tell you from personal experience that if you do decide to go with a thin filter you will come to despise the useless front cap they supply.

[stefanovandelli]

Thank you all. I the end I purchased a Pro1. The Canon lens cap fits fine as from your advice.