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New Flash SF58


Daniel Leung

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What did you like about the 20 test shots at home?

 

I was shooting a complete dark room about 40' long with the 28mm @ f4. the result is excellent. I have to take my son for a soccer game soon so I will have to post pictures later. H/e, compare with the SF48 that I previousely own, I can never get the sme situation bright enough

DL

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A fairly powerful flash is a fairly powerful flash - I can't imagine there is anything particularly remarkable about the light that the new flash puts out. What I'd be interested to know is how accurate and usable is the GNC mode when used with the M8 (I assume that there isn't anything resembling a proper TTL mode). Is there a pre-flash and subsequent delay in this mode as there is when using the SF-24D? I'm interested in the new flash but only if it offers something (e.g. camera controlled output that doesn't involve any kind of pre-flash) which I don't already have with my Metz 54 (which I use in manual or auto modes).

 

Incidentally, do you know if the new flash will talk to other Metz flashes (such as the 54) in a master-slave relationship?

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Ian, I think GNC is how it will work for the SF-58 - there's no ability to measure light reflected back off the sensor so it has to be done by using a pre-flash reflected off the shutter white stripe. So, you either use auto-mode and preset the aperture to what the flash says or else set the aperture you want, let the camera and flash work it out together and tolerate the pre-flash.

 

One reason for the sluggishness of the SF-24D might be that after the pre-flash has sapped its power, it's not immediately ready for the main event where the SF-58 has power in abundance - it's certainly a powerful flash, more so than even my SB-900 workhorse.

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A fairly powerful flash is a fairly powerful flash - I can't imagine there is anything particularly remarkable about the light that the new flash puts out. What I'd be interested to know is how accurate and usable is the GNC mode when used with the M8 (I assume that there isn't anything resembling a proper TTL mode). Is there a pre-flash and subsequent delay in this mode as there is when using the SF-24D? I'm interested in the new flash but only if it offers something (e.g. camera controlled output that doesn't involve any kind of pre-flash) which I don't already have with my Metz 54 (which I use in manual or auto modes).

 

Incidentally, do you know if the new flash will talk to other Metz flashes (such as the 54) in a master-slave relationship?

 

May be this quotation out of the manual is an answer to your question:

 

"TTL flash mode with metering pre-flash

The TTL flash mode with metering pre-flash with the digital Leica M- models is

a further development of the standard TTL flash mode of analog cameras.

Immediately after the shutter button is pressed, and before the actual exposure,

one or more almost invisible metering pre-flashes are executed by the

flash unit. The reflected light of the metering pre-flash/es is evaluated by the

camera. According to the evaluation, the subsequent flash exposure is adapted

to the photographic situation by the camera.

Notes:

Depending on the camera model, the metering pre-flashes precede the main

flash by such a short interval that they cannot be practically distinguished

from the main flash!

• The metering pre-flashes do not contribute to the exposure."

 

Regards

Steve

 

PS: the manual can be downloaded on the Leica website

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