Discussion
Hi guys
I'm not desperately looking to buy a new lens for my camera (really I want to know how to use the existing one I have before I go splashing lots of cash!), but I am interested to know what I would need to look for when the time does come.
What I mean is, that I know the 400D is not full-frame, so if I got a lens that is originally meant for that format, how do I translate the focal length etc to how it will work with my 400D.
Also, which series (certainly for Canon) are the 'correct' ones for my camera, and which will require the crop-factor conversion?
Long-term, I'm thinking about something with more zoom as the next lens...
I'm not desperately looking to buy a new lens for my camera (really I want to know how to use the existing one I have before I go splashing lots of cash!), but I am interested to know what I would need to look for when the time does come.
What I mean is, that I know the 400D is not full-frame, so if I got a lens that is originally meant for that format, how do I translate the focal length etc to how it will work with my 400D.
Also, which series (certainly for Canon) are the 'correct' ones for my camera, and which will require the crop-factor conversion?
Long-term, I'm thinking about something with more zoom as the next lens...
muppetdave said:
Hi guys
I'm not desperately looking to buy a new lens for my camera (really I want to know how to use the existing one I have before I go splashing lots of cash!), but I am interested to know what I would need to look for when the time does come.
What I mean is, that I know the 400D is not full-frame, so if I got a lens that is originally meant for that format, how do I translate the focal length etc to how it will work with my 400D.
Also, which series (certainly for Canon) are the 'correct' ones for my camera, and which will require the crop-factor conversion?
Long-term, I'm thinking about something with more zoom as the next lens...
All lens focal lengths need 'translation' regardless if they are intended for cropped-sensor cameras or not I'm not desperately looking to buy a new lens for my camera (really I want to know how to use the existing one I have before I go splashing lots of cash!), but I am interested to know what I would need to look for when the time does come.
What I mean is, that I know the 400D is not full-frame, so if I got a lens that is originally meant for that format, how do I translate the focal length etc to how it will work with my 400D.
Also, which series (certainly for Canon) are the 'correct' ones for my camera, and which will require the crop-factor conversion?
Long-term, I'm thinking about something with more zoom as the next lens...
That applies to all lens manufacturers.For the 400D, that crop-factor is 1.6x - so a 100mm lens is the equivalent of a 160mm lens on an 'old' film SLR or a full-frame DSLR.
(..so if you have the 18-55mm kit lens - that's roughly equivalent to 29-88mm)
From Canon, any EF or EF-S lens will work on your 400D.
(Only difference being that EF-S lenses will not work on full frame cameras (like the 5D and 1ds series))
So, basically, read the reviews and then buy the best your budget allows
Edited by flat-planedCrank on Sunday 30th March 23:30
muppetdave said:
Cool - that clears it up nicely. And to be 110% clear - you apply the 1.6 to ANYTHING...
So the kit lens is a bit sneaky in that respect!
Yep, that crop factor is applied to everything irrespective of manufacturer or whatever 'digital only' marking they have.So the kit lens is a bit sneaky in that respect!
I actually made an error in previous reply (now edited), the kit lens (18-55mm) is roughly 29-88mm in film / DSLR speak
Sorry for the confusion.Its roughly the same coverage as the venerable 24-70mm L on a 5D (full-frame). The standard kit lenses tend to be wider now to offer that mid-zoom range
A wide angle lens for a 1.6x crop camera is something like 10mm now.
(Sigma make the popular 10-20mm (£290), canon themselves make the 10-22mm (£489))
Cheers.
jon- said:
The 50mm f1.6 prime lens is apparently a good lens to start with. Only £70 on amazon so can't really go wrong and the picture quality is meant to be another league from the stock 18-55. Nice DoF at 1.6 too.
If you want to zoom use your legs
The one priced around £70 (£63 in fact) is f/1.8 rather than f/1.6 but nonetheless it is a superb lens and a "must have" IMHO.If you want to zoom use your legs
miniman said:
jon- said:
The 50mm f1.6 prime lens is apparently a good lens to start with. Only £70 on amazon so can't really go wrong and the picture quality is meant to be another league from the stock 18-55. Nice DoF at 1.6 too.
If you want to zoom use your legs
The one priced around £70 (£63 in fact) is f/1.8 rather than f/1.6 but nonetheless it is a superb lens and a "must have" IMHO.If you want to zoom use your legs
For comparison the kit lens only manages f/5 at 50mm
jon- said:
miniman said:
jon- said:
The 50mm f1.6 prime lens is apparently a good lens to start with. Only £70 on amazon so can't really go wrong and the picture quality is meant to be another league from the stock 18-55. Nice DoF at 1.6 too.
If you want to zoom use your legs
The one priced around £70 (£63 in fact) is f/1.8 rather than f/1.6 but nonetheless it is a superb lens and a "must have" IMHO.If you want to zoom use your legs
For comparison the kit lens only manages f/5 at 50mm
I have the 50 f1.4, its worth looking at if you want a prime to use all the time. Its faster to focus (USM (yeah i know, micro USM, but its still pretty fast)), easier to manual focus, and better made than the f1.8. Though, of course, more expensive with it
Sigma is set to release a 50mm f1.4 HSM, no price announced currently, might be one to look out for though. Their 30mm f1.4 is pretty well reguarded (for crop cameras only though)....
Cheers.
Edited by flat-planedCrank on Saturday 5th April 19:55
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