K1 and Metz 58 AF-1


NaimKhan

Link Posted 25/10/2017 - 17:04
Hi,
I need some advice please. I have both the Metz 58 and Pentax AF 540 flashes. Below are 2 shots - the first with the Metz while the second with the Pentax - both shot with identical settings. As you can see the former is grossly overexposed. The latter is somewhat underexposed but I can live with that.
Is there something I am doing wrong or is this a problem with compatibility? Have Metz brought out any firmware update? I haven't seen anything.

Metz 58 AF-1



Pentax AF-540


PPG

McGregNi

Link Posted 25/10/2017 - 17:34
Naim, it would be helpful if you could give the settings details ....ISO , aperture, flash head zoom setting, flash compensation, and approx. flash to subject distance.

This would allow an assessment from the guide number table as to whether good exposure is a realistic possibility, .

In general, for automatic P-TTL, this type of scene with a lot of white wall, will cause underexposure, so without some plus compensation then the result from the Pentax flash seems about right.

What was the flash range indication on the flash prior to taking the shot? You should have the distance within this range.

There have been issues with Metz flashes and the K1, and it doesn't look like your one is communicating properly with the camera at all. There may be a firmware fix from Metz, and I'm sure there will be some Metz users here who will know.
My Guides to the Pentax Digital Camera Flash Lighting System : Download here from the PentaxForums Homepage Article .... link
Pentax K7 with BG-4 Grip / Samyang 14mm f2.8 ED AS IF UMC / DA18-55mm f3.5-5.6 AL WR / SMC A28mm f2.8 / D FA 28-105mm / SMC F35-70 f3.5-4.5 / SMC A50mm f1.7 / Tamron AF70-300mm f4-5.6 Di LD macro / SMC M75-150mm f4.0 / Tamron Adaptall (CT-135) 135mm f2.8 / Asahi Takumar-A 2X tele-converter / Pentax AF-540FGZ (I & II) Flashes / Cactus RF60/X Flashes & V6/V6II Transceiver
Last Edited by McGregNi on 25/10/2017 - 17:35

NaimKhan

Link Posted 25/10/2017 - 17:42
Thanks Nigel.
Unfortunately I don't have any of the stuff that you wanted to know but this problem has been present since I bought to K1 and all images have been overexposed no matter how far the subject is.
I certainly agree with your assessment of the Pentax flash image.
PPG

JAK

Link Posted 25/10/2017 - 17:52
If it helps a bit!

Metz:
Camera Maker: RICOH IMAGING COMPANY, LTD.
Camera Model: PENTAX K-1
Image Date: 2017-10-25 15:54:12 (no TZ)
Focal Length: 77.0mm (35mm equivalent: 77mm)
Aperture: /5.6
Exposure Time: 0.010 s (1/100)
ISO equiv: 400
Exposure Bias: none
Metering Mode: Center Weight
Exposure: aperture priority (semi-auto)
White Balance: Auto
Flash Fired: Yes (Auto, return light detected)
Orientation: Normal
Color Space: sRGB
Software: PENTAX K-1 Ver. 1.42

Pentax:
Camera Maker: RICOH IMAGING COMPANY, LTD.
Camera Model: PENTAX K-1
Image Date: 2017-10-25 15:49:38 (no TZ)
Focal Length: 77.0mm (35mm equivalent: 77mm)
Aperture: /5.6
Exposure Time: 0.010 s (1/100)
ISO equiv: 400
Exposure Bias: none
Metering Mode: Center Weight
Exposure: aperture priority (semi-auto)
White Balance: Auto
Flash Fired: Yes (Auto, return light detected)
Orientation: Normal
Color Space: sRGB
Software: PENTAX K-1 Ver. 1.42
John K
Last Edited by JAK on 25/10/2017 - 17:54

NaimKhan

Link Posted 25/10/2017 - 18:01
Thanks John. Didn't know you could get all this from the exif data.
PPG

JAK

Link Posted 25/10/2017 - 18:35
The Firefox plugin FxiF provides that (and actually more that I deleted.)

https://addons.mozilla.org/en-GB/firefox/addon/fxif/

If you're not a Firefox user maybe there's something similar for Chrome or IE.
John K

McGregNi

Link Posted 25/10/2017 - 18:50
Good to know the 35mm equivalent focal length !

What's the approx distance Naim? I'll assume the flash head zoom was automatic, so the setting would have been 70mm. With those settings the flash range possible is 1.8 to 17.8 metres.

So a big range, but actually the lower limit of 1.8 metres can easily be exceeded indoors, so I advise for direct flash indoors a maximum of ISO 200/f5.6 to ensure no overexposure .... For wider apertures then ISO100.

For bounced flash them ISO 400-1600 is ok.

Of course it doesn't look like flash range is the problem here, but it is something to consider to rule out any"operator error" .
My Guides to the Pentax Digital Camera Flash Lighting System : Download here from the PentaxForums Homepage Article .... link
Pentax K7 with BG-4 Grip / Samyang 14mm f2.8 ED AS IF UMC / DA18-55mm f3.5-5.6 AL WR / SMC A28mm f2.8 / D FA 28-105mm / SMC F35-70 f3.5-4.5 / SMC A50mm f1.7 / Tamron AF70-300mm f4-5.6 Di LD macro / SMC M75-150mm f4.0 / Tamron Adaptall (CT-135) 135mm f2.8 / Asahi Takumar-A 2X tele-converter / Pentax AF-540FGZ (I & II) Flashes / Cactus RF60/X Flashes & V6/V6II Transceiver
Last Edited by McGregNi on 25/10/2017 - 18:51

NaimKhan

Link Posted 25/10/2017 - 18:59
McGregNi wrote:
Good to know the 35mm equivalent focal length !

What's the approx distance Naim? I'll assume the flash head zoom was automatic, so the setting would have been 70mm. With those settings the flash range possible is 1.8 to 17.8 metres.

So a big range, but actually the lower limit of 1.8 metres can easily be exceeded indoors, so I advise for direct flash indoors a maximum of ISO 200/f5.6 to ensure no overexposure .... For wider apertures then ISO100.

For bounced flash them ISO 400-1600 is ok.

Of course it doesn't look like flash range is the problem here, but it is something to consider to rule out any"operator error" .

It was certainly less than 1.8 meters away - more like 1m (probably). The flash was bounced off the white card that comes with it.
I have previously tried to communicate with Metz but the only people one can speak with in the UK are the distributors, who don't have any technical expertise. Does anyone know any different?
PPG

JAK

Link Posted 25/10/2017 - 19:11
I don't really know the Metz so maybe this page will help, maybe it won't!
https://www.metz-mecatech.de/en/lighting/firmware-download-flash-units.html

This is the Pentax page:
https://www.metz-mecatech.de/en/lighting/firmware-download-flash-units/mecablitz...
Note it says: 'Now also for Pentax K-1.'
John K
Last Edited by JAK on 25/10/2017 - 19:13

NaimKhan

Link Posted 25/10/2017 - 19:39
That's brilliant John. Thanks for that. See result below



PPG

McGregNi

Link Posted 25/10/2017 - 19:42
That was a quick firmware update! Good to see things looking up!
My Guides to the Pentax Digital Camera Flash Lighting System : Download here from the PentaxForums Homepage Article .... link
Pentax K7 with BG-4 Grip / Samyang 14mm f2.8 ED AS IF UMC / DA18-55mm f3.5-5.6 AL WR / SMC A28mm f2.8 / D FA 28-105mm / SMC F35-70 f3.5-4.5 / SMC A50mm f1.7 / Tamron AF70-300mm f4-5.6 Di LD macro / SMC M75-150mm f4.0 / Tamron Adaptall (CT-135) 135mm f2.8 / Asahi Takumar-A 2X tele-converter / Pentax AF-540FGZ (I & II) Flashes / Cactus RF60/X Flashes & V6/V6II Transceiver

JAK

Link Posted 25/10/2017 - 19:45
That's better!
John K

Daronl

Link Posted 26/10/2017 - 18:21
Uprated my Metz Software for the 58 AF1 a couple of months back on the Metz site.

Works perfectly with my K1
Daronl
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