All Forum Comments
Comment by K10D posted on Pentax AFA 1.7x TC at 14/04/2010 - 16:04
There are a number of threads where the weather sealing is mentioned. The last one being the "dodgy" non sealed K7 grip.
If its sealed, fine. If not why is it an issue? Anyone lost a winder or drive or camera or lens due to moisture ingress? If so, how bad were the conditions.
My Sigma 70-200EX and istD have been through several dust storms as still have no visible dust inside. Even sensor dirt has not been a problem.
Yes, weather sealing is good if incorporated, but why spend a hundred pounds more for the original grip for the K7? If you spend the forty quid or less and it fails after a year so what? It's not a big deal of money. A filter costs more.
Only a point of view. My grip is original as the alternative was not available last May.
Regards
If its sealed, fine. If not why is it an issue? Anyone lost a winder or drive or camera or lens due to moisture ingress? If so, how bad were the conditions.
My Sigma 70-200EX and istD have been through several dust storms as still have no visible dust inside. Even sensor dirt has not been a problem.
Yes, weather sealing is good if incorporated, but why spend a hundred pounds more for the original grip for the K7? If you spend the forty quid or less and it fails after a year so what? It's not a big deal of money. A filter costs more.
Only a point of view. My grip is original as the alternative was not available last May.
Regards
Comment by K10D posted on Weather seals at 14/04/2010 - 16:02
Comment by K10D posted on Tea, Coffee or Chocolate? at 08/04/2010 - 05:59
gregmoll wrote:
I've opened both pictures in Elements and matched their physical size by zooming in and out,133% and 75% if anything the No-TC version still has a slight edge over the TC version, but only very slightly.
Greg
Accepted Greg. My original post was more of a "blind loudspeaker test".I've opened both pictures in Elements and matched their physical size by zooming in and out,133% and 75% if anything the No-TC version still has a slight edge over the TC version, but only very slightly.
Greg
Which speakers are you listening to?
Does it look that bad whereby someone could say it had a TC on the lens?
Regards
Comment by K10D posted on Quality issue with TC at 07/04/2010 - 22:26
The K15mm is totally wasted on a cropped sensor just as the 28mm shift is.
Regards
Regards
Comment by K10D posted on UWA Primes - 14mm or 15mm? at 07/04/2010 - 22:22
gregmoll wrote:
Hi,
The with TC looks softer to me.
Could you post an example of the "without TC" blown up to the same size as the "with TC" example. That would give a better idea if there was any advantage to using the TC and not just blowing up the original.
Greg
These are 100% crops of the original jpg. To blow up the non TC to the with TC means pixelation.Hi,
The with TC looks softer to me.
Could you post an example of the "without TC" blown up to the same size as the "with TC" example. That would give a better idea if there was any advantage to using the TC and not just blowing up the original.
Greg
Unless I'm missing something. If so let me know.
Regards
Comment by K10D posted on Quality issue with TC at 07/04/2010 - 20:45
Two 100% crops:
without TC
with TC
Only basic levels adjusted. No sharpening. Both f/8
Regards
without TC
with TC
Only basic levels adjusted. No sharpening. Both f/8
Regards
Comment by K10D posted on Quality issue with TC at 07/04/2010 - 14:41
Good point!! No actually. I was basically looking to see if anyone thought that this image showed signs of having a TC attached.
I will do two more. With/without TC.
Regards
I will do two more. With/without TC.
Regards
Comment by K10D posted on Quality issue with TC at 07/04/2010 - 10:53
Just shot this with the Pentax 50-135mm and Pentax AF 1.7 TC. Anyone see a drop in IQ due to the TC?
Wide open indicated f/4.5
Regards
Wide open indicated f/4.5
Regards
Comment by K10D posted on Quality issue with TC at 07/04/2010 - 10:50
Very acceptable image.
Regards
Regards
Comment by K10D posted on K20D poor low light at 07/04/2010 - 08:51
Regards