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Lens Question
Old 01-12-2007, 12:45 AM   #1 (permalink)
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I'm saving for better quality lenses than what i have...
anyway question is...i use a Rebel XT so it has the 1.6x crop factor...for all around photography and mostly glamour im looking at a 20-40 f/2.8 and a 70-200 f/2.8 will these focal ranges accomodate me? will a 20 - 40 with a 1.6x crop be useful in glamour?
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Re: Lens Question
Old 01-12-2007, 01:30 AM   #2 (permalink)
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I use a Sigma 70-200 f2.8 on my Canon 20D and it is an outstanding lens. Keep in mind that in a smaller studio, you'll have difficultly getting back far enough for full length model shots. So I use it in such a studio for head and shoulders. For normal shooting I use a Sigma 18-125 f3.5-f5.6 which is a perfect range that gives me everything from the whole studio at 18 to portrait shots at 125. There are some real nice lens in the 18-70 range that are 2.8. Tamron has one as well as Sigma. Naturally Canon has some, but they are quite expensive. If I was going to go Canon and wanted the best all around lens for my walk around lens as well as studio use, I would look at the Canon 24-105 F4 IS L ($1100). It is a great lens, ultra sharp, and 2 or 3 extra fstops with the IS.
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Re: Lens Question
Old 01-13-2007, 12:22 AM   #3 (permalink)
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I suggest something in the range of 20-70mm for most model photography. Seldom would you need to go outside that range. Personally, I use a Canon 28-85 and I can't recall the last time I needed anything longer or shorter for models or portraits.

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Re: Lens Question
Old 01-13-2007, 02:41 AM   #4 (permalink)
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Sorry, but I'm unaware of any 20-40mm f2.8 lens. I use a Canon 24-70mm f2.8L for a majority of my studio work. It's the workhorse of the L series.

I have a 70-200mm IS f2.8L, and never use it in the studio. I do use a 135mm f2L for portraits, and occasionally a 100mm f2.8 Macro or 85mm f1.8, so you could argue that the 70-200mm should be able to stand in for those, but not for me. The 70-200 f2.8 is too heavy, and not fast enough - often the reason I'm using the 85mm or 135mm is for ultra-shallow depth of field.

I'd recommend getting the 24-70 f2.8L, then waiting to see if you feel the need for something longer. Besides, that way your wallet's scars can heal before you inflict fresh damage buying a 70-200
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Re: Lens Question
Old 01-13-2007, 05:37 AM   #5 (permalink)
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Quote:
Originally Posted by CatCynic View Post
Sorry, but I'm unaware of any 20-40mm f2.8 lens.
Sigma has a 20-40/2.8 EX DG for Canon, Nikon and Minolta (now Sony Alpha).

That aside, I think that the original poster would be better served by a 24-70 as a complement to a 70-200. The gap from 40 to 70 is fairly large, and potentially much more useful in glamour shooting than the extra 20-24 the other lens provides.
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Re: Lens Question
Old 01-13-2007, 08:10 AM   #6 (permalink)
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I would like to add to what other have said that you need to figure what the effective lenght of each lens is going to be on your 1.6 crop camera. The 24 - 70 lens is going to frame like a 38 - 112, and the 70 - 200 is going to frame like a 112 - 320. I believe the canon s lens, which only fit the cropped cameras, state the effective lenght. I have used the 24-70, 24 -105, and the 70 - 200 for the full frame canons. The 24 - 105 lens could be a little longer, like 24- 120, but for a small studio, where your standing 6 - 10 feet or so away from your subject gives you the most framing options without moving in. It would be great if canon made a 24 - 105 in a f2.8. but they don't so, you have to make choices. If you can get to a camera store that has lens, I would suggest you go and take a few shots with different lens at different zoom lenghts. If you get a really wide lens, you might get some distortion that you don't want at the short end.
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Re: Lens Question
Old 01-13-2007, 10:02 AM   #7 (permalink)
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Quote:
Originally Posted by CatCynic View Post
Sorry, but I'm unaware of any 20-40mm f2.8 lens. I use a Canon 24-70mm f2.8L for a majority of my studio work. It's the workhorse of the L series.

I have a 70-200mm IS f2.8L, and never use it in the studio. I do use a 135mm f2L for portraits, and occasionally a 100mm f2.8 Macro or 85mm f1.8, so you could argue that the 70-200mm should be able to stand in for those, but not for me. The 70-200 f2.8 is too heavy, and not fast enough - often the reason I'm using the 85mm or 135mm is for ultra-shallow depth of field.

I'd recommend getting the 24-70 f2.8L, then waiting to see if you feel the need for something longer. Besides, that way your wallet's scars can heal before you inflict fresh damage buying a 70-200
I have the same lens and I love it. One thing I have herd is the Canon 50 mm lens was a great lens also. I have not used one yet but I will someday..24 - 70 mm is what I use for my studio work and the 70 - 200 mm is great for the location shoots when you have plenty of room.

Mike

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Re: Lens Question
Old 01-13-2007, 11:54 AM   #8 (permalink)
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Sigma makes a 20-40 2.8 zoom...its a nice lens

Quote:
Originally Posted by CatCynic View Post
Sorry, but I'm unaware of any 20-40mm f2.8 lens. I use a Canon 24-70mm f2.8L for a majority of my studio work. It's the workhorse of the L series.

I have a 70-200mm IS f2.8L, and never use it in the studio. I do use a 135mm f2L for portraits, and occasionally a 100mm f2.8 Macro or 85mm f1.8, so you could argue that the 70-200mm should be able to stand in for those, but not for me. The 70-200 f2.8 is too heavy, and not fast enough - often the reason I'm using the 85mm or 135mm is for ultra-shallow depth of field.

I'd recommend getting the 24-70 f2.8L, then waiting to see if you feel the need for something longer. Besides, that way your wallet's scars can heal before you inflict fresh damage buying a 70-200
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Re: Lens Question
Old 01-25-2007, 10:56 AM   #9 (permalink)
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The 24-70 is the only way to go.

Workhorse strong and sharp. This lens fits well with smaller studios as well..

Price is a little up there but in this case you get what you pay for..
That and my 70-200 2.8 IS can shoot almost anything..
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Re: Lens Question
Old 01-25-2007, 03:30 PM   #10 (permalink)
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I'm still trying to get use to all this 1.6 factors for digital cameras and all these new lens sizes - so I still think in the film formats of 35mm for full body, 85mm head & shoulders, 105mm head shot and 180 for tight close-up.

In digital lingo the 35mm = 22mm, 85mm = 53, 105=66, 180=113. So here is my advice: whenever possible buy the best glass you can afford and preferably in a prime lens. Zooms have come a long way, but I still prefer a good prime-regardless of the inconvenience of changing lens. (maybe that's why I shoot routinely with three cameras.)

But if I have to be nailed down on a great all-round Canon zoom - then the 24-70 F2.8.
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