All Forum Comments
Comment by Algernon posted on Focusing Screens at 29/05/2012 - 11:08
As you can see the DOF is miniscule, but through the camera
you see more DOF i.e. equivalent to f/2.6
http://www.flickriver.com/search/Pentax+50mm+f1.2/
And some shots with the M42 Tomioka 55mm f/1.2
http://www.flickriver.com/search/Tomioka+55mm+f1.2/
Pentax never made an M42 version, Tomioka got around the
problem of the protruding rear element by grinding part of
it away ..... this causes the very unique Bokeh
Comment by Algernon posted on Focusing Screens at 29/05/2012 - 10:50
Comment by Algernon posted on More Falconry! (again!) (Image heavy thread) at 29/05/2012 - 10:12
As soon as I get the chance I'll see how the Pentax f/1.2
focuses using Live View at 25X focal length.
LV seems to show DOF for all apertures from f/1.2
The small 3" LCD isn't good enough for focusing even at 10X
plus a 5X magnifier When I'm in focus at 1.25M at f/1.2
according to LV I can move forward about 60mm and backwards
about 30mm before I see the LV image going OOF. The DOF is
only mm's at f/1.2 so LV isn't accurate enough for focusing.
Focusing through the optical VF is quite difficult, partly
because it's focusing at around f/2.6
Comment by Algernon posted on Focusing Screens at 28/05/2012 - 19:51
focuses using Live View at 25X focal length.
Comment by Algernon posted on Focusing Screens at 28/05/2012 - 18:44
It's FF and has to be cut down for Pentax. There is an online
retailer who sells them cut down.
This is just the details of the screen:
http://www.digitalrev.com/product/canon-ee-s-focusing-screen/MzI1NQ_A_A
Some reviews: link
31 pages on the US Forum: link
Comment by Algernon posted on Focusing Screens at 28/05/2012 - 17:41
Comment by Algernon posted on Socceraid 2012, GX20 Tokina 100-300mm f/4 at 28/05/2012 - 11:32
I like the 2nd and can live with the burnt out highlights.
Nice backlight on the hair.
Comment by Algernon posted on A couple with the DA*50-135 this weekend at 28/05/2012 - 11:31
batteries/items on this recall list:
http://www.recallowl.com/recalls/battery
Obviously it won't include items that haven't had recall
notices. Or recalls that have been missed by the website
=
Comment by Algernon posted on K5 battery question at 28/05/2012 - 11:14
just issued a recall notice due to melt-down of a batch
of batteries that they supplied for Nikon’s digital SLR's D800,
D800E, D7000 cameras and Nikon 1 V1 advanced camera.
link
At least a camera manufacturer will recall the batteries.
Cheap junk will just keep burning and melting cameras
until no batteries are left
Comment by Algernon posted on K5 battery question at 28/05/2012 - 10:51
Of course it isn't impossible to make an f1.2 lens for screw thread, but presumably Asahi thought it wasn't good enough.