DAVID MANZE

DAVID MANZE

Lives in France Hérault, France
Works as a retired
Joined on Mar 1, 2011

DAVID MANZE's recent activity

  • Replied in Quick facts
    Zvonimir Tosic wrote: Camera with a mirror: Framing and see through lenses available when camera is powered off That allows for framing and composition analysis without battery drainage; in...
  • Jim Radcliffe wrote: howieb101 wrote: Well I think it really is a matter of balance. If Broken Hill has a fully working camera he has as much right to say this as a person who has a camera with...
  • Hi,     I do a little video with the K01 and it's pretty good, first off the operational noises can only be avoided by an external mic or avoiding any AF operations.Having set the sound level in...
  • awaldram wrote: Stig Vidar Hovland wrote: K-3 is using a different set of sensors when lenses with aperture of f/2.8 or larger is used. Maybe that is the reson for different results on these two...
  • Hi,        I haven't a K3, however Awaldram's very similar results come from the K3 which to me shows that the lens's "depth of field" is the factor that dictates the deadband distance. This test...
  • Indeed the K5 can still do well this BIF was coming in at at least 15-20mph, these shots were nearly all using the Z axis. From the screw drive FA*300mm F4.5 lens. Oops the horizon. Tack sharp!
  • Hi Stig,          After some further tests with the K5;   The K5 was placed on on flat steel ruler with a flat subject (milk carton) at exactly 50 cms;   First test with the FA 50mm  F1.4  "AFC",...
  • Hi, From these tests taking the last example at 25mts with the 300mm lens at F4 using AFC focusing mode, there can be a missed focus from zero to half a meter depending on the moment of shutter...
  • Quoted from Awaldram 16-50 = 50mm @f2.8 approx 80cm dead zone 1 cm either side 2cm total 18-250 = 50mm @4.5 approx 80cm dead zone 2cm either side 4cm total seems to be about 80% of the DoF so it...
  • Hi Awaldram, As you have the K3 perhaps you could try a quick test to see what the "dead band" is on the K3 at Im so as to see whether the K3 performs better, my rough test was using a DA* 16-50...
  • Quote from Awaldram from the thread Ricoh K3 vs Fuji XT-1 That's an interesting idea David. And would also explain why slow lens (as in aperture) generally are the worst tracking lens irrelevant...
  • Hi guys, This is based on the Pentax K5 which is the latest incarnation I have of Pentax's AF systems., but which might also be applicable to the K3's much improved K3 system. We are always testing...
  • Replied in precisely
    awaldram wrote: DAVID MANZE wrote: awaldram wrote: That's an interesting idea David. And would also explain why slow lens (as in aperture) generally are the worst tracking lens irrelevant of how...
  • Replied in precisely
    awaldram wrote: That's an interesting idea David. And would also explain why slow lens (as in aperture) generally are the worst tracking lens irrelevant of how fast their AF flight time (end to...
  • Replied in precisely
    DAVID MANZE wrote: John_A_G wrote: lock wrote: Not on AF-S. That is why some of us told the Richard to bring in faster SIGMA HSM lenses. I do not specifically need pentax lenses only. And I...
  • Replied in precisely
    John_A_G wrote: lock wrote: Not on AF-S. That is why some of us told the Richard to bring in faster SIGMA HSM lenses. I do not specifically need pentax lenses only. And I refuse to buy SDM...
  • Most of the Revuenon primes are good and relatively cheap!
  • Best news for a while!
  • Bob Corson wrote: DAVID MANZE wrote: This morning I received the Pentax DA* 16-50mm 2.8 motor/circuit repaired FOC from Pentax. I set about checking and calibrating the lens for AF at about thirty...
  • This morning I received the Pentax DA* 16-50mm 2.8 motor/circuit repaired FOC from Pentax. I set about checking and calibrating the lens for AF at about thirty meters, this is more of a task than I...
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Total messages 1091
Threads started 101
Last post 19 hours ago
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Last post 3 months ago
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Last review Sep 4, 2012
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Photos uploaded 34
Last upload Aug 6, 2012