Archived posting to the Leica Users Group, 1999/06/02
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hi Henry, I just did a review of the M6 TTL/SF 20 combination for the LHSA Viewfinder and was very impressed with the combination in actual use. Stay tuned for the next Viewfinder appearing in a few weeks time. In the meantime, here are some answers to your questions. In TTL mode the flash will handle ISO 12-3200. The flash has compensation for + 3 stops, in 1/3 stop increments. This works in a similar fashion to the Nikon SB 24,25,26,28 series of flashes. Just set the exposure comp. on the LCD panel on the back of the flash and fire away. The flash meter reads off of the film itself and I believe it is center weighted. It is based on the TTL flash meter of the Leica R6. I shot a series of exposures on slide film using the compensation through its entire range. I then kept this film uncut to view the whole range of compensation. This is a most valuable tool for determining how much compensation you might want to use. At -3, the flash is barely noticeable, at +3 it is very hot. Throughout the entire range, the flash light balanced very nicely with the ambient light in the background. This works great indoors and in low light. Outdoors, in bright sunlight the 1/50 sec. flash sync is a problem. Unfortunately, we are stuck with this slow sync speed because of the physical limitations of the cloth focal plane shutter. I have used many small, non dedicated flash units with the M, but for ease of use, its hard to beat the M6 TTL/SF 20 combination. It is second only to the Nikon system in its ease of use. BTW, you can use the SC 17 cord with the SF20 to get the flash off camera and still retain full TTL metering. Too bad you can't use the Nikon SB flashes in TTL mode on the M6 TTL. Hope this answers your questions. Bill Rosauer