All Forum Comments
Comment by alfpics posted on Pentax HD 55-300 for £115 reduced to clear instore at John Lewis, Oxford Street, London at 13/08/2016 - 01:09
Comment by alfpics posted on Mercury & Venus over the lake at 12/08/2016 - 09:16
Comment by alfpics posted on Pentax 20-35mm f/4 on the K-1 at 12/08/2016 - 09:13
Comment by alfpics posted on K3ii Astrophotography at 11/08/2016 - 17:00
It is the viewfinder (where you look through) at the back of the camera that needs to be covered. For some reason most cameras are not light tight here and so any light from near the rear of the camera can find its way in reverse if you like through the pentaprism and (I am guessing) around the sides of the raised mirror.
If you cover the viewfinder whilst making a long exposure, then you should not get light leakage affecting the image.
Comment by alfpics posted on K3ii Astrophotography at 11/08/2016 - 15:58
The problem with long exposures is that any residual light around the viewfinder can get through and onto the sensor. So, eg, if you had a torch on behind the camera whilst you were night shooting, its light would be significantly brighter than what is coming from the sky. There was a thread about this recently
link
All you need is either the cap which came with the camera, although that is fiddly to fit in the field, so a bit of dark cloth or something and leave it there for the whole exposure
Hope that helps
Comment by alfpics posted on K3ii Astrophotography at 11/08/2016 - 12:11
Comment by alfpics posted on K3ii Astrophotography at 11/08/2016 - 06:32
Comment by alfpics posted on A few holiday snaps at 10/08/2016 - 22:58
Comment by alfpics posted on Little Fish Restaurant at Yallingup at 08/08/2016 - 21:17
Comment by alfpics posted on what causes this? at 07/08/2016 - 22:38
I saw several of these late this afternoon in a display cabinet in the camera section on the 5th floor, with usual Ricoh boxes. Clearly marked as £115 and guaranteed for 2 years. I already have this lens, else I would have bought one on the spot.