Lives in United States United States
Works as a Product marketing/engineer
Joined on Jul 4, 2007
About me:

I have the following:
Pentax 30-135 DA*
Pentax 35/2.0 FA
Pentax 300mm F4
Pentax 50/1.7 A
Pentax 135 2.8 A
Pentax 55-300
Sigma 17-70 (gen1)
Pentax FA* 24
Pentax 77 ltd
Pentax 31 ltd
Tamron 400 f4 Adaptall
Af 540 flash unit

yesman12's recent activity

  • i have stayed totally out of this but from what i have read on  various threads on the subject, it seems that the auto focus tracking results from DP Review seem accurate and others have confirmed ...
  • This will help a bit
  • Commented on article Special K? Pentax K-1 Review

    It is interesting that K1000usr has no posting record and only joined the DP review forum yesterday.

  • Replied in Did not know
    I had no idea that he passed. He helped me with Long Lenses choices. VEry active in this forum... May he rest in peace. Does anyone know what the cause was?
  • Replied in I have both
    They are different use cases... The 18-35 range is mid wide to normal.. good for street and many indoor uses...with its fast aperture i use it for museums and other indoor shooting where flash not ...
  • Created for sale thread Tamron 400mm f4 Adaptall II -800$
    For sale is a Tamron 400mm F4 adaptall 2 lens with Pentax KA adaptor. ALso comes with a  Lens hood, A tamron 112 mm MC Protection filter, and Carry bag. (see photos)... Optics are very clean (see ...
  • I think the Pentax 645Z will clearly outperform the IQ of the D5. And the price points are the same. Yes the FF Nikon is easier to use and yes the system is more versatile but for studio,...

  • all else remains the same.
  • Replied in Get it...
    Yes there is no need to fear high ISO images but I have noticed the difference. It is not dramatic but it is there as seen on this review ...
  • Replied in Get it...
    The K3 is a better camera on most dimensions however, at low light the K5 is better (defiantly on a per pixel basis and even when downsized IMHO). so above ISO 800 I prefer my K5.
  • I had similar thoughts and last year bought a used 645d because I had an old 645 film with 4 MF A series prime lenses (all bought used a insanely low prices). Many times I think the results are ...
  • bump
  • Replied in Super Zooms
    Image quality of superzooms is not as good as SLR (Higher noise and less dynamic range).. you have 450 effective FL with the 55-300 (also better lens than found on super zoom).  so the question ...
  • Created for sale thread Manfretto 488rc2 Ball Head
    Item Description manfretto RC 488 Ball head WITHOUT RC2 plate.  This is in good condition with a few paint chips (one shown in photo). A new 498 (replacement for this unit) goes for around $100. Re ...
  • If I recall, the Merrill will degrade quickly with ISO, have you found this to happen?
  • As others have said, the 70-300 Tamron Di-LD (not the updated version) has issues at 200-300, most notably loss of contrast and PF.  I had it and replaced it with he Pentax 55-300 DA, which is ...
  • All I shot RAW and used light room to convert to JPEG.  Just to be sure that it was not the sharpening settings I used, Please see attached which is the RAW converted "as is" without any ...
  • yes you are right. My K5 is better on a per pixel basis as is the 645D. Must be due to greater photon capture vs. noise in larger pixel sensors.... and it really shows in sky shots which are very ...
  • Created discussion thread One more time...645D vs. K3
    Hi all I am going to try this again.  I had a post about a month ago comparing a scene from Jenny Lake, Wy  Taken with 645 (35mm A series lens with Polarizer) to a K3 shot (16-85), trying to ...
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Total messages 889
Threads started 106
Last post 1 month ago
Total comments 31
Total likes 118
Last post 2 months ago
Total reviews 2
Last review Mar 8, 2014
Entries 0
Votes cast 0
Photos uploaded 3
Last upload Jul 10, 2012