Comments on: Comparing Two Canon Lenses http://www.beyondmegapixels.com/2010/02/comparing-two-canon-lenses/ Cameras,Photography, Photography tips Tue, 07 Feb 2012 19:52:00 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Jay http://www.beyondmegapixels.com/2010/02/comparing-two-canon-lenses/comment-page-1/#comment-23 Jay Fri, 12 Feb 2010 19:37:01 +0000 http://www.beyondmegapixels.com/?p=2600#comment-23 Additional info that might be added: The EF-S lenses restricted use to Canon cameras using the smaller sensors. The primary differences between the 17-55 and 24-70, reflected in the price, are build quality, weight (+8oz for the 24-70) and sealing. Neither lens is a lightweight, the 17 @ 645g(1.4 lb), the 24 @ 950g(2 lb). There are complaints of dust infiltrating this lens requiring additional post processing (dust spot removal in photoshop or other), and/or having to send the lens in for a professional cleaning. Having said that, the lens receives excellent reviews. <br><br>Users of less than full frame sensor cameras need consider the 'crop factor' in choosing their lenses. The 35mm equivalent for the 17-55mm @1.6x would approximate a 27-88mm and the 24-70mm @1.6x would be 38-112mm. If your interest is in a wider field of view (landscapes, room interiors, etc.) the 17-55 is the obvious choice. Some upper level cameras have a smaller crop factor of 1.3 and would be an even better choice for wider angles. For a better visual idea of how wide you need, on a full frame sensor you are able to 'see' a normal (12' x 15' approx) sized room with a 24mm lens. The difference between a 28mm and 24mm appears little; however, it really is significant! Additional info that might be added: The EF-S lenses restricted use to Canon cameras using the smaller sensors. The primary differences between the 17-55 and 24-70, reflected in the price, are build quality, weight (+8oz for the 24-70) and sealing. Neither lens is a lightweight, the 17 @ 645g(1.4 lb), the 24 @ 950g(2 lb). There are complaints of dust infiltrating this lens requiring additional post processing (dust spot removal in photoshop or other), and/or having to send the lens in for a professional cleaning. Having said that, the lens receives excellent reviews.

Users of less than full frame sensor cameras need consider the 'crop factor' in choosing their lenses. The 35mm equivalent for the 17-55mm @1.6x would approximate a 27-88mm and the 24-70mm @1.6x would be 38-112mm. If your interest is in a wider field of view (landscapes, room interiors, etc.) the 17-55 is the obvious choice. Some upper level cameras have a smaller crop factor of 1.3 and would be an even better choice for wider angles. For a better visual idea of how wide you need, on a full frame sensor you are able to 'see' a normal (12' x 15' approx) sized room with a 24mm lens. The difference between a 28mm and 24mm appears little; however, it really is significant!

]]> By: Tim http://www.beyondmegapixels.com/2010/02/comparing-two-canon-lenses/comment-page-1/#comment-21 Tim Fri, 12 Feb 2010 13:25:54 +0000 http://www.beyondmegapixels.com/?p=2600#comment-21 For the benefit of those of us who don't live in North America it would have been useful to put the weight of the lenses in grams as well as ounces. I had to find a conversion table to work it out. Incidentally, I was shocked at how heavy the larger lens is. I am not surprised it made your wrist hurt! For the benefit of those of us who don't live in North America it would have been useful to put the weight of the lenses in grams as well as ounces. I had to find a conversion table to work it out. Incidentally, I was shocked at how heavy the larger lens is. I am not surprised it made your wrist hurt!

]]> By: bookmephoto http://www.beyondmegapixels.com/2010/02/comparing-two-canon-lenses/comment-page-1/#comment-17 bookmephoto Thu, 11 Feb 2010 20:29:27 +0000 http://www.beyondmegapixels.com/?p=2600#comment-17 Great! Great!

]]> By: mrfearless47 http://www.beyondmegapixels.com/2010/02/comparing-two-canon-lenses/comment-page-1/#comment-10 mrfearless47 Thu, 11 Feb 2010 17:44:55 +0000 http://www.beyondmegapixels.com/?p=2600#comment-10 One consideration when buying Canon lenses. If you ever want to move to a Full Framer like the 5D MkII, you can't use the EF-S lens. That always tipped the balance for me in favor of the "FX" type lenses such as the "L". I tried to avoid EF-S lenses wherever possible. One consideration when buying Canon lenses. If you ever want to move to a Full Framer like the 5D MkII, you can't use the EF-S lens. That always tipped the balance for me in favor of the “FX” type lenses such as the “L”. I tried to avoid EF-S lenses wherever possible.

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