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What Digital Camera tests the Pentax smc DA 50-135mm f/2.8 ED (IF) SDM lens to find out if it's as good as the price suggests.
Weather-resistant, Replicates 70-200mm focal range
Zoom ring should be wider, hefty price
This lens has been around a while now, but it still manages to hold its own well against the very latest lenses available from other manufacturers. It delivers very good sharpness in the centre of the frame at maximum aperture, and excellent sharpness across the frame when stopped down.
Excellent sharpness across the frame, when stopped down, Very good sharpness in the centre at maximum aperture, Weather and dust resistant construction, Good build quality, Silent focusing, Full time manual focus override, Constant f/2.8 aperture
Performance towards edges of the frame at maximum aperture, Slightly gritty manual focus action on sample used for testing
The Pentax SMC DA* 50-135mm f/2.8 ED [IF] SDM is a high quality medium tele zoom lens but just like its Tokina cousin it is not without flaws. The resolution figures are generally very good to excellent except a drop in border quality at wide-open aperture towards the long end of the zoom range.
Bought this lens with some trepidation because of concern over SDM failures. I "needed" a lens in this range and 3rd party lens makers really didn't have what I wanted. There were reports that the SDM was remodeled in 2012 (hope that was true and not industry talk) because of the failures in both...
Slow focus time. Sometimes it takes more than 10 seconds to focus
It appears that this will be my primary go to lens for shooting the non-profit events I support.
Pentax K3. The only con with this lens is the slow auto focus but it really doesn't matter I never had any problems with locking on focus with this lens. I have used it for concerts sport and portraits and it works like a dream.
The DA* 50-135 is a fantastic lens in ALMOST every way. Until I ran into reliability issues with the silent focus motor on two separate copies forcing me to switch over to the discontinued but very similar Sigma 50-150 as my "go-to", I used the DA* 50-135 almost exclusively for portraits, artistic...
could use being longer say 200mm good tho
Superb lens quality and good construction. However, after three years and just few times used (around 10 photo sessions), the SDM motor stopped. I had to send it to repair. Now I have to use it with the screw motor from the camera.
Has become my go to everyday lens. Quiet and fast. Well worth the money!! A must have in your bag for any low light situations
I am a devoted Pentax (or whoever the company is now) customer and this is the lens that should have a free recall. but I'll get into this is a bit. Given the money this lens costs, I am sorry I ever bought it; yet, at any price, it is almost worthless.
this lens is outstanding ...build quality is amazing as well as picture sharpness...have it mounted on my pentax k10d im using this lens for outside glamour and portrait photography