I am planning to buy a sigma 28-300 DG for my Canon 350d. IS that a good move? or I should go for another lens

Question

I am planning to buy a sigma 28-300 DG for my Canon 350d. IS that a good move? or I should go for another lens? I dont want to remove and connect another lens for wide - tele and all. With this am I compromising the performance ? I red that this lens gives sharp pictures in 300mm too.

Good suggestion. But my idea is not to remove the lens quite often, when shooting functions. Also I have the kit lens 18-55. One more thing, using a multiplier also reduces the f value. So in tele range any ways we need to compromise for low light. Considering 350’s higher ISO with low noise , I think we can manage the higher f stop we are forced to. As you say better range of regular use, 29-320, to get that we need to keep the multiplier with the 18-200. (That will again look the camera bulky? Sigma 28-300 is a small one in look) What do you say

Answer 1

I'd get an 18-200mm instead.
If you get a 28-300mm zoom, you'll effectively see 45-480mm after the 1.6 focal length multiplier. This means that you won't have wide angle coverage.
With a Sigma/ Tamron 18-200mm, you effectively get 29-320mm. This is a much better range for general use. Canon doesn't make an 18-200mm, but the Sigma/ Tamron versions are fine.
With these mega-zoom lenses you get loads of convenience but you do sacrifice a bit in terms of image quality and low light performance. For low light situations and for portraits with shallow depth of field, you could consider adding a small, cheap Canon 50mm f/1.8 to your camera bag.
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As Clavestone explained, when I said multiplier, I wasn't talking about a tele-converter or any other added gear. It's just that the 350D appears to magnify your lenses by itself. This is what makes the 18-200mm a more useful range.
With an 18-200mm zoom, you could even sell your current 18-55mm lens. Just leave the 18-200mm on the camera full-time, and perhaps have a 50mm f/1.8 lens for 'emergency' use, in really low light situations.

Answer 2

The "multiplier" that the last guy is refering to is not a peice of equipment. It is due to the fact that Canon 400's sensor is smaller then film by 33% (24mm instead of 36mm that film has). ANY lens you put on this body, when you compare to a film body, you will have to figure this differance.

28mm is wide angle on film but IS NOT wide angle on EOS 400. 18mm is (thats why kit lens is 18-55, it is equal to a 28-80 on a film body)

Answer 3

go to adorama.com
for a variety of choices