11/26/2012

EX DF RF Leica 50mm / f2.5Sigma 10-20mm f/4-5.6

At either new or used prices, this lens is a good consideration for the person who has the EF-S 18-55 mm kit lens for their APS sensor digital camera and wants a similarly inexpensive telephoto. Reviews have typically commented on "softness" of the lens at its maximum focal length, but in practice the lens is more than adequate, especially if stopped down, according to many reviewers (search "Canon +EF +(70,75)" for examples). It is not an L lens, but it costs a tiny fraction of the price. Note that this lens does not have any image stabilization. An almost identical lens with the simpler USM autofocus, was the first commercial IS lens, it is great, but costs at much as 4X the price. This lens can be used on both full-size 35mm image cameras as well as on smaller sensor cameras like the Rebel or 20/30D (equivalent there to a 120(+/-) -480mm lens). The Micro USM lens has a Ultrasonic logo on the upper portion of the lens while this lens does not.
On a tight budget when I purchased my dRebel almost two years ago - this lens looked very attractive. Since owning it for two years - it seems to go further and further to the back of my equipment bag - and not taken in my backpack at all unless the climate is too harsh for my more expensive lenses.

In fairness to the product - it is very GOOD for what it cost and how it is designed. It makes no pretension to be anything other than an AF f5.6 >75-300mm< telephoto. The construction has remained solid - the zoom (fairly stiff or tight when new)sometimes makes funny noises from grit lodged in the 'nether regions' of the lens barrel (I am a defense contractor who travels to some pretty rotten climates). Dust and dirt do not seem to be a serious problem with regular maintenance of brush and blower around the rotating parts of the lens barrel.Canon EF 70-300mm f/4-5.6 IS Tamron AF 90mm f/2.8 Di SP A/M 1:1 Sony 55-300mm DT f/4.5-5.6NIKON 14mm f/2.8D ED AFSigma 10mm f/2.8 EX DCTamron AF 28-300mm f/3.5-6.3 XR Di LD Rokinon 24mm F/1.4 Leica Summicron-m 35mm F/2.0Sony SAL-20F28 20mm f/2.8 Sigma 28-300mm f/3.5-6.3 DG IF Pentax SMC DA* Series 50-135mm f/2.8 ED IF Rokinon FE14M-S 14mm F2.8 Tamron AF 18-250mm F/3.5-6.3Nikon 70-200mm f/2.8G VR II Sigma 70-300mm f/4-5.6 DG Sigma 150-500mm f/5-6.3 AF Vivitar 2x Vivitar VIV-35MM-C 35mm f/1.4 Sigma 10-20mm f/3.5 EX DC Canon EF 28-90mm F/4-5.6
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