Stig Vidar Hovland

Stig Vidar Hovland

Lives in Norway Sandnes, Norway
Has a website at http://www.heime.org
Joined on Mar 21, 2005
About me:

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DA 15/4 ED AL Limited
DA 21/3,2 AL Limited
FA* 24/2 AL [IF]
FA 28/2,8 AL
DA 35/2,8 Macro Limited
DA 40/2,8 XS
DA 40/2,8 Limited
A 50/1,7
A 50/2,8 Macro
DA* 55/1,4 SDM
DA 70/2,4 Limited
100/4 Bellows
D FA 100/2,8 Macro WR
FA* 200/4 Macro ED [IF]
DA* 200/2,8 ED [IF] SDM
FA* 300/2,8 ED [IF]
FA* 400/5,6 ED [IF]

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DA 10-17/3,5-4,5 Fish-Eye ED [IF]
DA 12-24/4 AL ED [IF]
DA* 16-50/2,8 AL ED [IF] SDM
DA L 18-55/3,5-5,6 AL
FA 28-70/4 AL
FA 28-80/3,5-4,7
DA* 50-135/2.8 ED [IF] SDM
F 70-210/4-5,6 ED
F* 250-600/5,6 ED [IF]

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Sigma 8-16/4.5-5.6
Tokina SD 28-70/3,5-4,5
Tamron 80-210/3,8-4 (and a 2x converter)

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Program A
MZ-5
*ist DS
*ist DL
K-7
K-5 II
K-3
Q7
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AF-160FC
AF-330FTZ
AF-540FGZ
Pentax bellows M
Pentax refconverter M
HD Pentax-DA AF Rear Converter 1.4x AW
Pentax F1,7X AF Adapter
Pentax Rear Converter-A 1.4X-L
Pentax Rear Converter-A 2X-L
Pentax Rear Converter-A 1.4X-S
Pentax Rear Converter-A 2X-S

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Pentax Monocular Converter K

Stig Vidar Hovland's recent activity

  • Out of the size of the topmost it could easily be a 1xx-450/5.6
  • Pentax changed how this worked, but I am not sure if it was introduced on K-5 or K-5 II. Earlier models like K-7 will not activate IS until you half press the shutter release and you have to wait ...
  • No, I would never buy new and probably expensive MF lenses. I did bought a "new" A50/2,8 macro a few years back, but it was cheap :-)
  • The small ring around the front element is glued. Use a sharp knife. Then take of the larger ring. The small adjustment screws can be found at the outer edge inside the lens. You will probably ...
  • Its not glue. It is Locktite on some screws and that is good design. The ring around the front element is glued and you can pop it of with a sharp knife. And if you take of some other parts in the ...
  • Replied in K-5 versus K-3
    K-3 also have a lot better exposure meter than K-5. It has 86000 color sensitive zones in K-3, but only 77 gray level zones in K-5
  • I have to do some testing myself with the FA*400/5.6 and F*250-600/5.6. Its not something I am going to use very much, but nice to know that it works, anyway. The 1.4x converter works nice with my ...
  • Replied in Stig...
    Pentax Europe recommended me to send it in for a check and they replaced the AF module. It is now working very good and perhaps better than my K-5II. So it was clearly something wrong with my camera.
  • Yes, I have to agree on this one. The big change came with K-5 II and K-5 IIs which where very capable in mixed light. K-3 is even better.
  • There is no 300/2.8 on the current roadmap so don't have any hopes for it :-)
  • No, never had any problems with that.
  • I made a "prototype" in plastic on a 3d printer first and then got someone to make it in aluminum on a CNC machine. I did the drawings with FreeCAD and had a steep learning curve, but got it right ...
  • Thanks :-) I made a new tripod mount for it and also removed a broken part of the focus limiter which jammed AF. It works great now and is indeed an exceptional good lens. I was told in both cases ...
  • I doubt it because I needed some parts for mine and was told by Pentax in Japan that they have no spare parts at all for this lens.
  • Replied in John...
    Also a new tripod mount and some screws are of a larger type than originals behind the aperture ring. Not sure what is done with it, but be careful.
  • 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 lenses.
  • I agree there is a deadband and it could just as well be something programmed into the software based on the aperture used. Have you tried your FA50/1.4 at different apertures (1.4 and 16) to see ...
  • I agree there is a deadband somewhere, but I don't think it's related to the aperture of the lens. The af system has it's own optical system. The focusing screen and sensor is getting light from ...
  • Replied in K3 Moire
    You can see it here where they are testing the AA simulation. http://www.imaging-resource.com/PRODS/pentax-k3/pentax-k3A.HTM
  • Replied in K3 Moire
    Cameras with bayer sensors have different resolutions on the red, green and blue channel. So moire appears on different detail levels depending on color. Your Sigma camera will probably not produce ...
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