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06-29-2009, 07:28 PM   #1
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Anyone have the ebay petal hood?

Just wondering if anyone is using the tulip hoods widely available on ebay. I am considering getting the 49mm threaded variety for my FA50/1.4. Does anyone know if this lens will vignette with one of those hoods?

Cheers,

Adam

06-30-2009, 01:10 AM   #2
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I took a chance and bought one to replace the hood on a DA21 Ltd. I don't see any vignetting with that lens, so I don't think there would be any problem with a 50mm. Personally I'd recommend the Pentax metal hood, an admittedly more expensive option. The fact that they can sell me this lens hood, including delivery from Hong Kong to my door for $5 total gives me an indication of what their wholesale cost must be. But losing or breaking it won't make you give it a second thought.

Further to the DA21 use, I took someone's advice and picked up a used metal hood for an Olympus 28mm. It's far nicer than the eBay plastic hood, and allows me to use a 67mm cheapie lens cap, so it can stay permanently affixed.
06-30-2009, 02:50 AM   #3
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Ah -- thanks for the tip. Yes, my inner cheaparse is the motivation for this question. I just can't make myself cough up the $28.50 for the Pentax hood. IT'S A HOOD!!!
06-30-2009, 08:16 AM   #4
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Hi,
I use this 49mm hood on my fa50 and da40. So far so good: no complaines. Just have to be carefull when you put it on: it has very soft plastic thread.
Good luck,

06-30-2009, 01:33 PM   #5
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I do have a screw on petal hood for my DA16-45. Its a bit finicky and takes longer to attach/align/remove than the original hood.

I have the metal Pentax screw-on hood for the 50/1.4 or 55/1.8 and it works nicely for the F35-70 as well. Just remember you can have a bit of leeway with choice of lens hoods cuz of the APS crop. I currently use the Nikon 85/2 hood for my Helios-44K-4 58/2 and XR Rikenon 50/2 and it works great.

For your FA50, just get a regular hood, no need for a petal one. With screw-on hoods, there's always a little bit of play and aligning a petal hood after every knock is more trouble than its worth.
06-30-2009, 02:04 PM   #6
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U may just use a long tele hood on 50. Even the wider 43 can take it w/o vignetting.

06-30-2009, 02:32 PM   #7
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The hood, when used on a DSLR with a 50mm lens, should be designed for a 75mm lens to ensure that slightly out of view light sources do not hit the front element. A random hood may prevent you from bumping the front element into something, but may not be effective at all if it is too wide. The hood should be just barely outside the field of view of the lens.

The hood on my DA 12-24 is actually fully effective only at 12mm, for example. If one were to design the perfect hood, it would zoom with the lens.
06-30-2009, 02:41 PM   #8
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QuoteOriginally posted by Canada_Rockies Quote
If one were to design the perfect hood, it would zoom with the lens.
no, either you 'd design an internal zoom (no change in outer length of the lens - moving some inner tube towards the front element when going towards wide end) or you 'd have design similar to 16-45/4 (extending when going towards wide end) and fix the hood on a non extendable part of the body (Canon EF 24-70mm f/2.8 USM L is the perfect design in this case)

06-30-2009, 04:01 PM   #9
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In general, I'd say no need to go out of your way to have a petal hood, unless it's the matched stock one. A lot of the generic ones on Ebay seem to be almost useless, so short are they to avoid vignetting on anything. If it's just for cropped digital, you should be able to go quite long with your hoodage. I've got a pretty deep, (but also wide in diameter) old one on mine, which provides nice protection but also lets me use that lens on a film camera.

By some quirk of changing styles, it also looks like it was designed for my K20d. I'm afraid I have no idea where it came from, though.



In general, non-petal hoods are just a lot more hassle-free if they're suitable enough for the lens.
06-30-2009, 05:55 PM   #10
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Easy enough...I have a rather shabby-looking 49mm rubber hood. I'll use that for now. Maybe I'll dress it up with duct tape.
06-30-2009, 06:04 PM   #11
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Hee. One thing I actually like to do with my 49mm-threaded lenses is step em up to a filter size I use and get a rigid hood to fit *that.*
06-30-2009, 07:43 PM   #12
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QuoteOriginally posted by deejjjaaaa Quote
no, either you 'd design an internal zoom (no change in outer length of the lens - moving some inner tube towards the front element when going towards wide end) or you 'd have design similar to 16-45/4 (extending when going towards wide end) and fix the hood on a non extendable part of the body (Canon EF 24-70mm f/2.8 USM L is the perfect design in this case)
I'm afraid you missed with this one, deejjjaaaa, though you rarely miss. The hood should adjust to match the focal length. So, with the DA 12-24, the hood should be about twice as far forward when the lens is at 24mm. It is not.
06-30-2009, 08:52 PM   #13
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QuoteOriginally posted by Canada_Rockies Quote
The hood should adjust to match the focal length. So, with the DA 12-24, the hood should be about twice as far forward when the lens is at 24mm. It is not.
what did I miss exactly ? DA 12-24 has a hood mounted on the part of that is being extended... so its hood moves along with the front element... not good...



ideal and practical solution will be like Canon did



cheap solution will be 3 stage rubber collapsible hood
06-30-2009, 08:54 PM   #14
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QuoteOriginally posted by deejjjaaaa Quote
what did I miss exactly ? DA 12-24 has a hood mounted on the part of that is being extended... so its hood moves along with the front element... not good...


ideal and practical solution will be like Canon did


cheap solution will be 3 stage rubber collapsible hood
OK! I got it. That is the same effect, but by retracting the optics rather than advancing the hood.
06-30-2009, 09:59 PM   #15
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QuoteOriginally posted by Canada_Rockies Quote
OK! I got it. That is the same effect, but by retracting the optics rather than advancing the hood.
right, you have to move optics anyways to zoom, so it is practical to leave hood alone... btw does FA* 28-70/2.8 also work like that Canon or not ?
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