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12-23-2011, 06:49 AM   #1
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Cactus AF50 P-TTL Flash for Pentax

Hello everybody.

Did someone tried the Cactus AF50 P-TTL Camera Flash / Speedlite for Pentax? What can you say about this flash?

I've found one at Cactus AF50 P-TTL Camera Flash / Speedlite for Pentax - Gadget Infinity

Thanks.

12-23-2011, 09:26 AM   #2
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It was only launched last month and it's their first entry to this category. spec wise it looks a little like a metz af50 minus the usb port for software updates ( handy because when a new body comes along the flash will likely need a software update - usb lets you load it otherwise you send to the manufacturer
sounds like a good unit for that price though

Be interesting to see some reviews on it but i couldn't find one.

I should point out that they measure the guide number using a 105 lens so in reality its more like a GN40 @ 50mm or less rather than GN50 but metz does the same thing
Pentax uses much more conservative GN ratings (giving a 50mm GN and an 85 mm One. from - on the af540 it's 54 @85 and 45 @ 50)

Last edited by eddie1960; 12-23-2011 at 09:35 AM.
12-23-2011, 09:40 AM   #3
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looking at the 3rdparty reviews this looks like a p-ttl update of this model (made by TUMAX)

Bell & Howell (TUMAX) Z680AF-P reviews - Pentax Camera Accessories: Database and Reviews
12-24-2011, 09:09 PM   #4
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found some reviews:
Flash Cactus
Vanished Twin: Photography Blog: Cactus AF 50

looks good for the price

12-26-2011, 01:57 AM   #5
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Thanks, guys!

I'll be waiting for some reviews from forum's members. Or maybe someone puts the flash on marketplace...
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