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Photo Forum / General Photo Topics / Australian Photography / July 2006

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Wide Angle for SLR digital

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ken - 27 Jul 2006 00:09 GMT
I understand that an 18mm lenses on a digital SLR is equivalent to a
26mm or so on a film camera.
What lenses do people use when they want a real wide angle job on a
digital SLR?
googlegroups@sensation.net.au - 27 Jul 2006 00:44 GMT
> I understand that an 18mm lenses on a digital SLR is equivalent to a
> 26mm or so on a film camera.
> What lenses do people use when they want a real wide angle job on a
> digital SLR?

The Sigma 12-24mm is probably your best bet. It's also full frame so
you can use it on a film camera, or a full frame DSLR if you upgrade.
Just be aware that perspective distortion gets pretty crazy at such
wide angles.

If you're taking shots of relatively static landscapes then you could
also look into stitching multiple images together - perspective
distortion is much less of an issue in this case...

http://satin.sensation.net.au/rowan/widecompare.jpg

(note the extreme lean of the post to the left in the 16mm shot)
Dave E - 27 Jul 2006 00:56 GMT
>I understand that an 18mm lenses on a digital SLR is equivalent to a
> 26mm or so on a film camera.
> What lenses do people use when they want a real wide angle job on a
> digital SLR?

Hi Ken,

'real wide angle' depends on your definition but for DSLRs, some of us use
the 12-24 DX (Nikkor) which I've found to be quite a good item in the bag
every now and then and then there's a 10.5 f/2.8 - haven't used it, mainly
because it's a DX and I'm returning to shooting film.  Seems to review quite
well.

The 12-24 becomes about an 18-36 and the 10.5 is about a 16 in 35mm speak.

Cheers,
Dave E (Sydney)
Rob - 27 Jul 2006 01:01 GMT
> I understand that an 18mm lenses on a digital SLR is equivalent to a
> 26mm or so on a film camera.
> What lenses do people use when they want a real wide angle job on a
> digital SLR?

The equivalent to what you have been using on there 35mm SLR's.

So for myself I have a 12-24  but you have to accept that these will
distort the image end and must be handled accordingly.
POTD.com.au - 27 Jul 2006 05:11 GMT
>I understand that an 18mm lenses on a digital SLR is equivalent to a
> 26mm or so on a film camera.

Not a DSLRs have small sensors.  Those will "full frame" cams such as the 5D
and 1DS2 enjoy focal lengths as rated.  ;-)
rmd - 27 Jul 2006 12:23 GMT
>I understand that an 18mm lenses on a digital SLR is equivalent to a
>26mm or so on a film camera.
>What lenses do people use when they want a real wide angle job on a
>digital SLR?

I use the canon 10-22mm.  Very nice lens.  Not much distortion, and
quite sharp.
googlegroups@sensation.net.au - 27 Jul 2006 22:16 GMT
> >I understand that an 18mm lenses on a digital SLR is equivalent to a
> >26mm or so on a film camera.
[quoted text clipped - 3 lines]
> I use the canon 10-22mm.  Very nice lens.  Not much distortion, and
> quite sharp.

Just in case the OP is not aware (and is interested in Canon - he
didn't mention any brands), the 10-22mm is an EF-S lens, which means it
is incompatible with a full frame body.
Mr.T - 28 Jul 2006 07:41 GMT
> > >I understand that an 18mm lenses on a digital SLR is equivalent to a
> > >26mm or so on a film camera.
[quoted text clipped - 7 lines]
> didn't mention any brands), the 10-22mm is an EF-S lens, which means it
> is incompatible with a full frame body.

I think you can safely assume he was talking about an APS-size sensor
camera, or his post would make no sense at all.

MrT.
googlegroups@sensation.net.au - 28 Jul 2006 13:04 GMT
> > > >I understand that an 18mm lenses on a digital SLR is equivalent to a
> > > >26mm or so on a film camera.
[quoted text clipped - 10 lines]
> I think you can safely assume he was talking about an APS-size sensor
> camera, or his post would make no sense at all.

I understood that, but I consider lenses an investment. What happens if
the APS-C sensors become effectively obsolete in 5 years and the latest
full frame model is too good to pass up?
rmd - 29 Jul 2006 03:22 GMT
>> > > >I understand that an 18mm lenses on a digital SLR is equivalent to a
>> > > >26mm or so on a film camera.
[quoted text clipped - 14 lines]
>the APS-C sensors become effectively obsolete in 5 years and the latest
>full frame model is too good to pass up?

Guess you wont get any true wideangle shots for 5 yrs until that
happens then.
Rob - 29 Jul 2006 04:03 GMT
>>>>>>I understand that an 18mm lenses on a digital SLR is equivalent to a
>>>>>>26mm or so on a film camera.
[quoted text clipped - 17 lines]
> Guess you wont get any true wideangle shots for 5 yrs until that
> happens then.

Perhaps, by then, they will all have been snapped up.
ken - 30 Jul 2006 23:16 GMT
Thanks all. Very useful advice. I have lenses from my EOS film Canon
camera and will probably buy a 30D with the 12-24 lens.
Mr.T - 29 Jul 2006 09:40 GMT
> > I think you can safely assume he was talking about an APS-size sensor
> > camera, or his post would make no sense at all.
>
> I understood that, but I consider lenses an investment. What happens if
> the APS-C sensors become effectively obsolete in 5 years and the latest
> full frame model is too good to pass up?

You buy another lens obviously.
Whether you should buy any APS size lenses in the meantime is a totally
different argument, irrelevant to the original question.

MrT.
 
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