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Old Nov 16, 2005, 10:40 AM   #1
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I do a lot of flash photos are long distances (using a telephoto lens), generally 50 to 70 feet away from the subject, and am looking for a really powerful slave flash. I am currently using a Vivitar DF-200 and it is not powerful enough.

Thanks for ther help.

MT
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Old Nov 16, 2005, 12:03 PM   #2
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Any flash will suffice as a slave flash providing it is capabe of taking a means of firing the flash. IE a hotshoe mounted sensor.
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Old Nov 16, 2005, 12:54 PM   #3
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mtclimber wrote:
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I do a lot of flash photos are long distances (using a telephoto lens), generally 50 to 70 feet away from the subject, and am looking for a really powerful slave flash. I am currently using a Vivitar DF-200 and it is not powerful enough.

Thanks for ther help.
At what aperture (and may be focal length)?

We need to know this to figure out the Guide Number to make the recommendation, and @ what ISO speed do you intend to use the camera?:idea:
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Old Nov 16, 2005, 12:55 PM   #4
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For example the Sunpak 622 Pro has a GN of 200 in ft, i.e. twice as powerful as your Vivitar DF-200 (GN of 92)
-> which means the Sunpak 622 can reach 70ft @ f/2.8(=200/70) using ISO 100

Of course both flashes can go further out if you can increase the ISO
Take your Vivitar DF-200 - if you shoot at ISO 400 instead, the GN then becomes 262
-> 262/70 = 3.74, i.e. you can get to 70ft with lens opening of f/3.5 or larger
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Old Nov 16, 2005, 5:54 PM   #5
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NHL-

Many thanks for your rapid reply. I am usually shooting at around 50 to 60 ft using 300mm (35mm equivalent) focal length with the maximum available aperture of F 4.0 and a max ISO setting of ISO 800.

I will also take a look at the Sunpak 622 as well. Here is a sample photo. It was taken at 55 feet.

Thanks for the help.

MT


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Old Nov 16, 2005, 6:16 PM   #6
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mtclimber wrote:
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I am usually shooting at around 50 to 60 ft using 300mm (35mm equivalent) focal length
Here you go: http://www.naturephotographers.net/gs/gsbb.html


... and if you can afford this fan-cooled monster::lol::-):G
http://www.metz.de/en/photo_electron..._mz_5.163.html
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Old Nov 16, 2005, 7:47 PM   #7
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NHL-

I am sorry to say that I could find nobody at all that are carrying the Metz MZ-5. It looks like the Sunpak 622 or the Metz MZ-5 are my answer. However, finding a retailer is difficult. Thanks for your help.

MT
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Old Nov 16, 2005, 8:51 PM   #8
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NHL wrote:
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... and if you can afford this fan-cooled monster::lol::-):G
http://www.metz.de/en/photo_electron..._mz_5.163.html
I didn't know it's fan cooled :?, this is really cool :G
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Old Nov 16, 2005, 11:33 PM   #9
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mtclimber wrote:
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NHL-

I am sorry to say that I could find nobody at all that are carrying the Metz MZ-5. It looks like the Sunpak 622 or the Metz MZ-5 are my answer. However, finding a retailer is difficult.
FYI -
http://www.bhphotovideo.com/bnh/cont...goryNavigation
http://www.bhphotovideo.com/bnh/cont...goryNavigation



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I didn't know it's fan cooled :?, this is really cool :G
... yea this potato masher could probably light up an entire football field :-) :lol: :G
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Old Nov 16, 2005, 11:57 PM   #10
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Dear NHL-

Your motivation is noted with great glee. However, and quite unfortunately there is NOT an unlimited budget for this photo fray. We do have to keep it within realistic and logical bounds. $250 to $300 is the maximum I am able to spend in this quest, I am sorry to say.

So no matter what you can dream up, folks, there is indeed a well defined maximum dollar amount that I am able to spend. 'Sorry about tht.

MT
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