----- Original Message ----- From: "Bruce Dayton" Subject: Re: Ebay fun
> William, > > I suppose if I said "You dog!" you would only take that as a > compliment. (vbg) Keep in mind that I slightly lean towards dogs as > they actually are pets whereas cats are more like friends. I just got back from an afternoon of protection training. Let me tell you, your worldview sure changes when there is a 90 pound German Shepherd attached firmly (really firmly) to your arm. With friends like cats, you really don't want a lot of enemies. > > I am trying to decide between the leaf shutter > and the regular one right now. How clumsy is the leaf shutter when > used for fill flash and is there any operational difference between it > and the 2.8 when not using the leaf shutter? I already have the 90mm LS, I expect the 165 will be the same. It is not too clumsy in operation. Firstly, the lens will work just like a normal lens until you invoke the lens shutter. When using the lens shutter, there is a pretty specific routine to go through. First, for mechanical timing reasons, the camera shutter must be set to 1/8 second. This is very important, for failure to do this will make you think your lens is not very reliable. After that, it is just a matter of setting the shutter speed on the lens, and cocking the lens shutter, in addition to cocking the camera shutter. I am told the lens shutter speed should not be adjusted after the shutter is cocked, but I don't know how important this is. If you are using a flash in conjunction with the lens shutter, the flash is plugged into the PC socket on the lens, and the camera is then used normally. When you trip the shutter, the lens shutter is actuated by the aperture stimulator, and as the lens stops down, the lens shutter closes. Then the body shutter opens, the lens shutter cycles, the camera shutter closes and the mirror comes back down, ready to go again. It is certainly not as quick to use as a camera with lens shutters designed in, but it certainly works well enough. I was really trying to decide between the 165mm f/2.8 and the 165LS. I think the stop less DOF would be nice, but the lens shutter is probably going to be more useful. William Robb - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
