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nugget247 nugget247 is offline

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  1. Petrock
    07-07-17
    Petrock
    [Better Late Than Never Dept.] About your post on the Tokina 28-70/2.8-4.3 : I just got this one recently, and I found the same exposure problems you did. I think the max aperture at 28mm is closer to f3.5. And information on the variable aperture vs. focal length (if any) is not passed to the camera. So at 28mm, the camera thinks the max is f2.8, when it's really f3.5. Also, there is no signal to the camera that the max aperture is decreasing as focal length is increasing.
    I haven't done it yet, but I think the only answer is not to use A on the aperture scale, and just use the lens as you would an M lens, with an individual exposure reading/setting for each aperture setting---until you are used to the thing, anyway.

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  • About nugget247
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    Pentax Cameras
    K-30

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  • Last Activity: 07-07-18
  • Join Date: 01-28-15
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  • Total Likes Received: 36

Latest Reviews

Item Name Thumbnail Recommended Rating Price Review

Liked Posts

  Latest Likes Received Date Posted By Comment
1 like Non-Forum Post 05-08-19 05:24 AM KX-Digital I found your review of the Tokina AT-X SD 100-300 f/4 helpful!
1 like Non-Forum Post 10-16-18 05:14 AM pepperberry farm I found your review of the Auto Sears 55mm F1.4 helpful!
1 like Non-Forum Post 10-16-18 04:59 AM pepperberry farm I found your review of the Sigma 70mm F2.8 EX DG Macro helpful!
1 like Non-Forum Post 07-09-18 11:27 PM jt_cph_dk I found your review of the SMC Pentax 28mm F3.5 helpful!
1 like Non-Forum Post 06-19-18 07:34 AM jt_cph_dk I found your review of the SMC Pentax-A 50mm F1.4 helpful!
1 like Non-Forum Post 05-11-18 06:04 PM ellicottva I found your review of the Sigma 70mm F2.8 EX DG Macro helpful!
1 like Non-Forum Post 08-02-17 07:46 AM IgorZ I found your review of the Ricoh 50mm Rikenon P f/1.4 helpful!
  Latest Likes Given Date User Name Comment
1 like SMC Takumar 135mm f/2.5 (6 element version)... 01-16-17 10:13 AM dcshooter
1 like Non-Forum Post 12-30-16 08:13 AM kiwi_jono I found your review of the Tokina AT-X Pro 28-70mm F2.6-2.8 helpful!
1 like Non-Forum Post 03-01-16 02:36 PM D. Obermann I found your review of the SMC Pentax-M 28mm F2 helpful!
1 like Non-Forum Post 03-01-16 06:03 AM nick52 I found your review of the SMC Pentax-M 50mm F1.7 helpful!
1 like Non-Forum Post 02-28-16 07:00 PM Ducatigaz I found your review of the Sigma 400mm F5.6 APO (AF) helpful!
1 like Non-Forum Post 01-08-16 08:01 PM stevebrot I found your review of the PENTAX AF 280T helpful!
1 like Non-Forum Post 12-29-15 08:33 AM dme I found your review of the Cosina MC Cosinon-W 24mm f2.8 helpful!
nugget247 has received a total of 36 Likes | View All of nugget247's Liked Posts | View Posts nugget247 Likes

Latest Threads

Thread Forum Last Poster Replies Views Last Post
For Sale - Sold: SMC Pentax-A 24mm f/2.8 Wide Angle Lens - Excellent... Sold Items nugget247 0 448 11-21-17 11:05 AM
For Sale - Sold: Early Takumar 105mm f/2.8 - Preset Version Sold Items gordon_l34 1 471 08-29-17 04:10 PM
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