All Forum Comments
Comment by George Lazarette posted on Magnification/Focal Length at 30/07/2004 - 00:26
A lens with good centre resolution and poor edge resolution will work better on a digital camera (with an APS-sized sensor) because the edges will have been cropped off.
Generally speaking, a lens has to perform better with digital because the smaller "negative" size (ie: sensor size) requires a greater magnification. So, avoid bad lenses.
George
Comment by George Lazarette posted on Magnification/Focal Length at 29/07/2004 - 00:04
I find I lose shots when using M42 lenses, unless the subject is static and easy to see.
Comment by George Lazarette posted on K mount lenses and *ist D (peleng 8mm) at 29/07/2004 - 10:05
A, F, FA, FAJ, DA.
It can also use earlier K mount lenses (M and the first K lenses which have no suffix after the word "Pentax"). The camera must be using the latest firmware and be set to Manual. To set the correct shutter speed for the pre-selected aperture, press the green button.
In practice it's pretty straightforward and quick.
Comment by George Lazarette posted on K mount lenses and *ist D (peleng 8mm) at 29/07/2004 - 01:01
Comment by George Lazarette posted on old Pentax lens (p mount) with new camera at 26/07/2004 - 15:16
As for dullness, you almost always need to apply some post-processing, even if your exposure is correct. I find I usually need to increase the gamma and contrast, sometimes the saturation, then sharpen.
Before you invest in Photoshop, try using Irfanview, which allows you to make these adjustments both to single pictures and in batches.
Irfanview is quick, simple and cheap - three things that Photoshop can't claim to be, though it's enormously powerful.
Comment by George Lazarette posted on Re: *Ist D functions AF & AP at 25/07/2004 - 09:36
Comment by George Lazarette posted on slave flash propagation time at 27/07/2004 - 19:33
Wireless refers to flash units that comunicate via infra-red or radio, and these have all the features of on-camera flash.
Slave simply means flashes that are triggered by a flash of light.
There is nothing typical about how long either will recharge. It depends on all sorts of factors.
Every camera has it's specified maximum flash sync speed, and this (for Pentax SLR cameras) falls in a range from 1/60 to 1/250. 1/1000 is out of the question unless you are using the AF360FGZ flash gun, which fires a short burst of separate flashes very rapidly. Not many bodies support this.
Normally, it is the flash that freezes the action, not the shutter speed, because the flash is typically of very short duration. To freeze action using flash, the light from the flash must be much greater than the ambient light. This can be difficult to achieve on a bright day.
Comment by George Lazarette posted on slave flash propagation time at 22/07/2004 - 22:27
Bad luck!
Comment by George Lazarette posted on MZ7 - draining brand new batteries...any ideas? at 21/07/2004 - 14:52
Many people find it easier to use a card reader, and dispense with the USB connection. See my earlier post about a simple way to download using a small batch file.
Comment by George Lazarette posted on ist D USB connection at 20/07/2004 - 15:31

