Originally posted by texandrews mmmm....mostly, sure, but not always. Over on the medium format forums you'll be seeing folks using longer lenses for landscape---as will I on both my Z and my K1..
Which is why I used the term "mostly". Most of the time they will want a high shutter speed.
I do understand that MF users will use a longer lens for landscape but this discussion is about K1 shuttershock. I have no experience of shutter shock on a Pentax MF camera.
i do understand that at times one will want to use a slower shutter speed with a long lens
on a tripod. My advice then is to use ES.
i realise this is not perfect. But look at the tools we had before the age of Shake reduction and Electronic shutter. We knew the limitations of our gear and that if we wanted to use a long lens with a slow shutter speed we would encounter problems with camera shake (if hand held); shutter shock perhaps; mirror slap very likely. The physical attributes and difficulties of lifting a mirror and moving a pair of shutter curtains over a film plane/sensor at a speed which we cannot percieve with the naked eye has not changed one bit. Yes you are right to question it and ask why 1/30-1/200 may be problematic with a long lens on a tripod with the K1. But equally you could ask why does SR only provide 5 stops of extra handholding ability....why not 10 ? Or why can we not have ISO 25600 with the same noise level as ISO 100? The answer to all these questions is one of dealing with a trade-off between producing the best camera in the world and producing one that will sell.
---------- Post added 08-19-2017 at 11:27 PM ----------
Originally posted by jbinpg Trying to find a common denominator here. Are in-camera lens corrections enabled perchance? Maybe the corrections are poorlly-tuned and affecting image quality? Does the apparent shutter shock also occur with older lenses? I have not noticed such an IQ drop within the stated shutter range on my K-1 but then I always turn off in-camera lens corrections.
There are other factors to consider too. In-camera corrections will I believe only work when the lens is used for the format for which it was created. So I think that the 60-250 will disable lens correction when used in FF mode. Perhaps someone else can clarify.
I use the K1 exclusively in FF mode and with DA*300/DA*60-250/D-FA 24-70/ FA 77/FA 31/ and numerous A;M;and K series lenses have never seen shutter shock at all WHEN HANDHELD. On a tripod it is a different story and is noticable in the 1/30-1/200 range when using a longer lens.