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  1. #1
    Join Date
    Apr 2006
    Location
    Canada
    Posts
    358

    Exclamation SIGMA 24-135mm Asph. IF REVIEW - PART II

    Because of the 10 photo per thread limit, I had to split the review into two parts. This is a continuation of Part I.

    (Please go back and see Part One first if you haven't already done so.)



    24mm - f4.5
    (I know the film name says f4..photobucket cut off the '.5' part)


    24mm - f8.0


    24mm - f11.0


    48mm - f3.5
    (Note this was to be 50mm but apparently according to the EXIF, I missed by 2mm)


    48mm - f4.5


    48mm - f8.0


    48mm - f11.0


    135mm - f4.5


    135mm - f8.0


    135mm - f11.0
    (I think I might have moved the camera by accident on this one.)

    =======
    5. RESULTS
    =========
    The general trend is that as you stop the lens down, the sharpness goes up quite a bit. Some of you may wonder why the sharpness varied a bit and it was because I didn't have a tripod at the time and set the camera on a textbook. When the lens extended to 135mm, it was so long that the camera tipped over. I had to hold it down on the other end with my hand for the telephoto shots. Despite a 2s Self timer, my hand may have attribuited to the expected blur. Another bit of info is that the AF was a little indecisive or it could have been because of the small changes in camera postion when I changed aperture and focal length. I've hyperlinked the image crop labels so you can view the full resolution images. (Note: all images have thus far come straight from the camera, not modifications made whatsoever.)

    ============
    6. CONCLUSION
    ============
    Overall I found the lens sharpness fairly good and quite adequate for my use. 24mm at the f2.8 max was a bit soft but judging from the full size photos, I don't think one will notice unless really big prints were made. The AF will hunt a bit but find some distinct lines/edges and its fine. I think this may also be the fact that the Samsung only as 5 AF sensors.

    Rating: 8.5/10
    Is this lens worth the price?: Yes (Its a real bargain at $99US)
    Would You Buy This Lens Again?: Yes

    Thanks for reading and I hope that you all have found this informative or not useful.
    Last edited by CptOfGondor; 10-03-2006 at 08:33 PM.
    ================================
    Gallery : DeviantArt

    dSLR : SAMSUNG GX-1L
    dP&S : CASIO EXILIM EX-S500
    35mm SLR : PENTAX MZ-M w/ PENTAX FG Battery Grip

    SIGMA 24-135mm f2.8-4.5 Aspherical IF (Pentax AF Mount)
    18-55/3.5-5.6, 35-70/3.5-4.8, 70-210/4-5.6, 80-200/4.5
    28/2.8, 50/2, 135/2.8, 135/3.5, 200/3.5, 300/5.6

  2. #2
    Join Date
    Apr 2006
    Location
    Canada
    Posts
    358
    Critique and comments anyone? LoL.
    ================================
    Gallery : DeviantArt

    dSLR : SAMSUNG GX-1L
    dP&S : CASIO EXILIM EX-S500
    35mm SLR : PENTAX MZ-M w/ PENTAX FG Battery Grip

    SIGMA 24-135mm f2.8-4.5 Aspherical IF (Pentax AF Mount)
    18-55/3.5-5.6, 35-70/3.5-4.8, 70-210/4-5.6, 80-200/4.5
    28/2.8, 50/2, 135/2.8, 135/3.5, 200/3.5, 300/5.6

  3. #3
    Join Date
    Oct 2004
    Posts
    2,124
    Just that I'd love to see some real world shots

    At 99 I'd say sure it was a deal but as the suggest retail of what? 399? It
    looks to be a pretty poor purchase.

    Tim

  4. #4
    Join Date
    Jun 2006
    Posts
    464
    These lenses only cost $99 USD? Or did I misunderstand somewhere?

  5. #5
    Join Date
    Apr 2006
    Location
    Canada
    Posts
    358
    Well yea. The MSRP at Sigma is $500USD...but if you check out Cameta Camera's ebay store, the lens goes for $99.99US. (buy-It-Now)

    So far, I've only seen the Pentax AF mount lens on sale for that price although I've heard that Minolta a-Mount users once enjoyed the same prices.
    Last edited by CptOfGondor; 10-09-2006 at 12:06 AM.
    ================================
    Gallery : DeviantArt

    dSLR : SAMSUNG GX-1L
    dP&S : CASIO EXILIM EX-S500
    35mm SLR : PENTAX MZ-M w/ PENTAX FG Battery Grip

    SIGMA 24-135mm f2.8-4.5 Aspherical IF (Pentax AF Mount)
    18-55/3.5-5.6, 35-70/3.5-4.8, 70-210/4-5.6, 80-200/4.5
    28/2.8, 50/2, 135/2.8, 135/3.5, 200/3.5, 300/5.6

  6. #6
    Join Date
    Jul 2005
    Posts
    24

    Nice job

    Thanks for reviewing... Although this Sigma is nothing very special (own one) it is of great use as a general walkaround use (and nice add-on to weather-sealed K10D due to low price and non-availability of sealed lenses yet :-( ). One thing You missed over 10% was weight- this 530 g is something general but with Pentax Kaf-mount it reads as high as 595 g- so heavier of some camera... :-) Anyway it is a nice piece especially considering its low price and possibility of full-frame usage :-) And one the worst side- zoom creep, You know- always streching out (although setting to 24mm helps 90% of cases... why no lock switch (action lens idea by Sigma? :-) ).

    Thanks and happy shooting, JR
    Last edited by Reps; 12-13-2006 at 11:27 AM.

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