Quick lens hood advice anyone?

On Sat, 25 Aug 2007 18:45:04 -0700, Devon wrote:

> Hi all, I recently purchased a Rebel Xti with two lenses: a 70-300mm
> and a 17-85mm. Is there a single lens hood that I can buy that will
> work well with both? In either case, what would you recommend I buy?

Very unlikely. Take pictures using a tripod with both lenses at
their shortest focal lengths with bright lights near, but not in the
frame. See if either suffers from some flare. If so, fashion a
cardboard tube into a crude lens hood and position it while looking
through the viewfinder until it slightly blocks the view or causes
vignetting, and then back it off a bit, take pictures and compare
the flare. If it helps, then a lens hood probably also would. Some
photographers leave their lens hoods at home and just use a hand to
shield the lens when needed.
 >> Stay informed about: Quick lens hood advice anyone? 

Ray Fischer wrote:
> Devon <hedgehog8675309.RemoveThis@yahoo.com> wrote:
>> Hi all, I recently purchased a Rebel Xti with two lenses: a 70-300mm
>> and a 17-85mm. Is there a single lens hood that I can buy that will
>> work well with both? In either case, what would you recommend I buy?
>
> Look at the ends of the lenses. Are they the same size?
> No. That means one lens hood would not fit both.

Depends on the lenses. My older EF 75-300 fits the same 58mm filters
and lens hood as my 300D's 18-55 kit lens.
 >> Stay informed about: Quick lens hood advice anyone? 

On Sun, 26 Aug 2007 05:14:30 GMT, Matt Ion wrote:

>>> Is there a single lens hood that I can buy that will work well with both?
>>> In either case, what would you recommend I buy?
>>
>> Look at the ends of the lenses. Are they the same size?
>> No. That means one lens hood would not fit both.
>
> Depends on the lenses. My older EF 75-300 fits the same 58mm filters
> and lens hood as my 300D's 18-55 kit lens.

That they fit does not indicate that they'll work well. If you
put a lens hood designed for the EF 75-300 on the 18-55mm lens and a
hood designed for the 18-55mm lens on the EF 75-300, I'd imagine
that one would provide no benefit and the other would cause severe
vignetting, if not outright blockage. If the lens hood's thread is
too large, a step-up adapter will allow it to be used. But whether
it fits or not, the lens hood still has to accommodate the viewing
angle of the lens, and that's unlikely to be the case with such
dissimilar lenses. A single lens hood may work with both lenses,
but only well at a subset of the focal length ranges.
 >> Stay informed about: Quick lens hood advice anyone? 

"Matt Ion" <soundy106.TakeThisOut@gmail.com> wrote in message
news:W_7Ai.93950$rX4.64520@pd7urf2no...
> Ray Fischer wrote:
>> Devon <hedgehog8675309.TakeThisOut@yahoo.com> wrote:
>>> Hi all, I recently purchased a Rebel Xti with two lenses: a 70-300mm
>>> and a 17-85mm. Is there a single lens hood that I can buy that will
>>> work well with both? In either case, what would you recommend I buy?
>>
>> Look at the ends of the lenses. Are they the same size?
>> No. That means one lens hood would not fit both.
>
> Depends on the lenses. My older EF 75-300 fits the same 58mm filters and
> lens hood as my 300D's 18-55 kit lens.

Just as important as size is function. A 17-85mm hood has to clear 28mm
equiv, and a 70-300 hood has to clear 70 equiv. (One should use a different
hood on a lens used for both APS-C and FF.)

Since one wants the most stray light blocking possible, using a 28mm hood on
a 70-200 would be pretty useless.

David J. Littleboy
Tokyo, Japan
 >> Stay informed about: Quick lens hood advice anyone? 

David J. Littleboy wrote:
> "Matt Ion" <soundy106.DeleteThis@gmail.com> wrote in message
> news:W_7Ai.93950$rX4.64520@pd7urf2no...
>> Ray Fischer wrote:
>>> Devon <hedgehog8675309.DeleteThis@yahoo.com> wrote:
>>>> Hi all, I recently purchased a Rebel Xti with two lenses: a 70-300mm
>>>> and a 17-85mm. Is there a single lens hood that I can buy that will
>>>> work well with both? In either case, what would you recommend I buy?
>>> Look at the ends of the lenses. Are they the same size?
>>> No. That means one lens hood would not fit both.
>> Depends on the lenses. My older EF 75-300 fits the same 58mm filters and
>> lens hood as my 300D's 18-55 kit lens.
>
> Just as important as size is function. A 17-85mm hood has to clear 28mm
> equiv, and a 70-300 hood has to clear 70 equiv. (One should use a different
> hood on a lens used for both APS-C and FF.)
>
> Since one wants the most stray light blocking possible, using a 28mm hood on
> a 70-200 would be pretty useless.

I'm not claiming otherwise... only correcting Ray's blanket statement
that same hood wouldn't fit both lenses.
 >> Stay informed about: Quick lens hood advice anyone? 

I'd like to point out that at least for Canon, the lens hood
that comes with the lens may be quite wrong for that lens!

As in, if you are using a full-frame (EF, not EF-S) lens
on a 1.6 crop camera, you should use a "tighter fit"
lens hood.

Also, for wide angle lenses, you may very well be able to
use amazingly small filters with the appropriate
adapter ring without vignetting at all.

This all applies in particular to the 24-105 f/4L.

Doug McDonald
 >> Stay informed about: Quick lens hood advice anyone? 

"Devon" <hedgehog8675309.TakeThisOut@yahoo.com> wrote in message
news:1188092704.815758.62500@l22g2000prc.googlegroups.com...
> Hi all, I recently purchased a Rebel Xti with two lenses: a 70-300mm
> and a 17-85mm. Is there a single lens hood that I can buy that will
> work well with both? In either case, what would you recommend I buy?
>
> Thanks for any input!
>
> Devon
>
I don't see how one hood would be usable with two such different lenses. I
would follow Canon's advice. You can of course go down to your local camera
store and buy generic hoods. In fact, you can buy them from B&H.
Jim
 >> Stay informed about: Quick lens hood advice anyone? 

"Matt Ion" <soundy106.TakeThisOut@gmail.com> wrote in message
news:TRgAi.94726$rX4.64375@pd7urf2no...
> David J. Littleboy wrote:
>> "Matt Ion" <soundy106.TakeThisOut@gmail.com> wrote in message
>> news:W_7Ai.93950$rX4.64520@pd7urf2no...
>>> Ray Fischer wrote:
>>>> Devon <hedgehog8675309.TakeThisOut@yahoo.com> wrote:
>>>>> Hi all, I recently purchased a Rebel Xti with two lenses: a 70-300mm
>>>>> and a 17-85mm. Is there a single lens hood that I can buy that will
>>>>> work well with both? In either case, what would you recommend I buy?
>>>> Look at the ends of the lenses. Are they the same size?
>>>> No. That means one lens hood would not fit both.
>>> Depends on the lenses. My older EF 75-300 fits the same 58mm filters
>>> and lens hood as my 300D's 18-55 kit lens.
>>
>> Just as important as size is function. A 17-85mm hood has to clear 28mm
>> equiv, and a 70-300 hood has to clear 70 equiv. (One should use a
>> different hood on a lens used for both APS-C and FF.)
>>
>> Since one wants the most stray light blocking possible, using a 28mm hood
>> on a 70-200 would be pretty useless.
>
> I'm not claiming otherwise... only correcting Ray's blanket statement that
> same hood wouldn't fit both lenses.

Didn't mean to sound argumentative here; I just thought that overall in the
thread function wasn't being emphasized enough.

David J. Littleboy
Tokyo, Japan
 >> Stay informed about: Quick lens hood advice anyone? 

David J. Littleboy wrote:
> "Matt Ion" <soundy106.RemoveThis@gmail.com> wrote in message
> news:TRgAi.94726$rX4.64375@pd7urf2no...
>> David J. Littleboy wrote:
>>> "Matt Ion" <soundy106.RemoveThis@gmail.com> wrote in message
>>> news:W_7Ai.93950$rX4.64520@pd7urf2no...
>>>> Ray Fischer wrote:
>>>>> Devon <hedgehog8675309.RemoveThis@yahoo.com> wrote:
>>>>>> Hi all, I recently purchased a Rebel Xti with two lenses: a 70-300mm
>>>>>> and a 17-85mm. Is there a single lens hood that I can buy that will
>>>>>> work well with both? In either case, what would you recommend I buy?
>>>>> Look at the ends of the lenses. Are they the same size?
>>>>> No. That means one lens hood would not fit both.
>>>> Depends on the lenses. My older EF 75-300 fits the same 58mm filters
>>>> and lens hood as my 300D's 18-55 kit lens.
>>> Just as important as size is function. A 17-85mm hood has to clear 28mm
>>> equiv, and a 70-300 hood has to clear 70 equiv. (One should use a
>>> different hood on a lens used for both APS-C and FF.)
>>>
>>> Since one wants the most stray light blocking possible, using a 28mm hood
>>> on a 70-200 would be pretty useless.
>> I'm not claiming otherwise... only correcting Ray's blanket statement that
>> same hood wouldn't fit both lenses.
>
> Didn't mean to sound argumentative here; I just thought that overall in the
> thread function wasn't being emphasized enough.

Can't disagree with that...
 >> Stay informed about: Quick lens hood advice anyone? 

On Mon, 27 Aug 2007 01:54:30 GMT, Matt Ion wrote:

>> Didn't mean to sound argumentative here; I just thought that overall in the
>> thread function wasn't being emphasized enough.
>
> Can't disagree with that...

That's odd. I said pretty much the same thing (about 'function')
in my earlier reply to your message, which concluded with :

> A single lens hood may work with both lenses,
> but only well at a subset of the focal length ranges.
 >> Stay informed about: Quick lens hood advice anyone? 

ASAAR wrote:
> On Mon, 27 Aug 2007 01:54:30 GMT, Matt Ion wrote:
>
>>> Didn't mean to sound argumentative here; I just thought that overall in the
>>> thread function wasn't being emphasized enough.
>> Can't disagree with that...
>
> That's odd. I said pretty much the same thing (about 'function')
> in my earlier reply to your message, which concluded with :
>
>> A single lens hood may work with both lenses,
>> but only well at a subset of the focal length ranges.

What's odd about it? I didn't disagree with you either. I was only
correcting Ray's rather snide generalization.
 >> Stay informed about: Quick lens hood advice anyone? 

On Mon, 27 Aug 2007 03:16:09 GMT, Matt Ion wrote:

>> That's odd. I said pretty much the same thing (about 'function')
>> in my earlier reply to your message, which concluded with :
>>
>>> A single lens hood may work with both lenses,
>>> but only well at a subset of the focal length ranges.
>
> What's odd about it? I didn't disagree with you either. I was only
> correcting Ray's rather snide generalization.

I understand. I also noticed the ambiguity, since there was no
way to tell which part of David's sentence you were agreeing with.

But as I said, the lens hood almost certainly wouldn't fit for
reasons other than whether the thread fit both lenses. What Ray
implied but didn't directly state was that the lenses had different
thread sizes. But actually, if they do differ, and the 70-300mm
takes a larger thread than the 17-85mm, with a suitable stepup
adapter, the 70-300mm's lens hood might actually be a good match for
the shorter lens. Very unlikely, but possible, I think.
 >> Stay informed about: Quick lens hood advice anyone? 

"ASAAR" <caught.RemoveThis@22.com> wrote:
> On Mon, 27 Aug 2007 01:54:30 GMT, Matt Ion wrote:
>
>>> Didn't mean to sound argumentative here; I just thought that overall in
>>> the
>>> thread function wasn't being emphasized enough.
>>
>> Can't disagree with that...
>
> That's odd. I said pretty much the same thing (about 'function')
> in my earlier reply to your message, which concluded with :
>
>> A single lens hood may work with both lenses,
>> but only well at a subset of the focal length ranges.

The idea that a single lenshood is adequate for the standard zoom in
question is itself fairly nuts. It's a 28-135mm equivalent. Better than
nothing, but not much.

This probably isn't quite as much of a problem on the 70-300. Maybe.

David J. Littleboy
Tokyo, Japan
 >> Stay informed about: Quick lens hood advice anyone?