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09-07-2011, 05:45 PM   #1
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Need lens hood for Sigma 170-500mm...same as 50-500mm and 150-500mm? Help please!

I just bought a Sigma 170-500mm on eBay, but it doesn't have the lens hood with it. Sigma sells some lens hoods on their site for $25, but they don't list one for the 170-500mm. They do, however, list hoods for two other lenses that take 86mm filters, just like my 170-500mm. Namely, the current 150-500mm OS, and the old 50-500mm non-OS.

My question is, since these three Sigma's all take 86mm filters, is it reasonable to assume that the lens hoods will be interchangeable? If anybody has first hand knowledge, I would really appreciate.

I can always buy a screw-in 86mm hood off eBay for $13, but I'd rather have a bayonet-mount Sigma hood. I also found a bayonet hood for an 86mm Canon EF 70-200mm f/2.8L IS USM on Amazon for $8, but I don't know if Canon's bayonet lens hood mount is different from Sigma's.

Any help would be greatly appreciated!


Last edited by Edgar_in_Indy; 09-07-2011 at 06:00 PM.
09-07-2011, 05:47 PM   #2
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I'd imagine the hood for the 150-500 would be more accurate than the one for 50-500, but only based on the statement I've heard that lens hoods for zoom lenses are oriented around their widest apertures.
09-07-2011, 06:01 PM   #3
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QuoteOriginally posted by JinDesu Quote
I'd imagine the hood for the 150-500 would be more accurate than the one for 50-500
You're probably right, so if it turns out that both hoods will fit, then I'll get the 150-500 hood. My primary concern though, is whether either of the hoods will fit at all.
09-07-2011, 06:02 PM   #4
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Oooh, sorry, didn't get that the first go-round. Not sure if they'll fit, hopefully someone else can chime in!

09-07-2011, 06:19 PM   #5
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Couplenof things to consider, are the lenses all DG. I.e. Full frame, do they have he same attachment size, and are you using it on full frame of ASP-C. If on ASPCA and the lenses are full frame any hood will be I adequate because they are for a wider field of view
09-07-2011, 06:46 PM   #6
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I'm actually more concerned with whether the hood will phsyically fit on the end of the lens. Any lens hood will be better than nothing, so I'm not overly concerned at this point about it being the ideal lens hood.
09-07-2011, 07:37 PM   #7
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QuoteOriginally posted by Edgar_in_Indy Quote
I'm actually more concerned with whether the hood will phsyically fit on the end of the lens. Any lens hood will be better than nothing, so I'm not overly concerned at this point about it being the ideal lens hood.
Keep in mind that a lens hood that is longer than it needs to be has the potential to cause some vignetting at the widest focal lengths.

It's likely that it will attach securely. I have several Sigma lenses, including the EX DG 28mm f/1.8 and the EX DF 28-70mm f/2.8, both of which have a 77mm filter thread, and both of which have nearly identical hoods that can be swapped. If the hoods in question are bayonet, it's likely they'll fit, as I don't think Sigma has changed it's hood bayonet for EX lenses.

That being said, before you order, you might want to try calling Sigma up and asking if they happen to know if it will fit, and asking what their return policy is in case it doesn't.
09-07-2011, 07:53 PM   #8
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QuoteOriginally posted by Edgar_in_Indy Quote
I'm actually more concerned with whether the hood will phsyically fit on the end of the lens. Any lens hood will be better than nothing, so I'm not overly concerned at this point about it being the ideal lens hood.
There's always duct tape.

09-07-2011, 08:08 PM   #9
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QuoteOriginally posted by nater Quote
Keep in mind that a lens hood that is longer than it needs to be has the potential to cause some vignetting at the widest focal lengths.
With the lens in question starting at 170mm at the WIDE end, I think you'd have a pretty hard time finding a hood that would cause vignetting.

QuoteOriginally posted by nater Quote

It's likely that it will attach securely. I have several Sigma lenses, including the EX DG 28mm f/1.8 and the EX DF 28-70mm f/2.8, both of which have a 77mm filter thread, and both of which have nearly identical hoods that can be swapped.
That information is very helpful, thank you. I sent Sigma an email, but haven't heard back from them yet.
09-08-2011, 02:16 AM   #10
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My 170-500 (APO old school version, not the fancy one with the EX powdery finish) came without a lens hood too, but I bought a screw-in metal hood instead. It's a bit too long to fit into any of the lens cases I currently have with the hood mounted, and removing and installing the hood risks scratching the huge lens front element.
09-09-2011, 05:32 AM   #11
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I spoke to someone at Sigma, and she advised that the hoods from the 150-500mm or the non-OS 50-500mm will mount on the 170-500mm. Only problem is that they have the EX finish, so they won't match the smooth finish of the 170-500mm. Not a big deal, but she said she'd check with the parts department to see if they have a hood for the 170-500mm.
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