Cy-20 Flash


Link Posted 16/06/2012 - 10:20
Hey guys I have a CY-20 cheap €10 chinese flash laying around, just wondering if anyone has used one here and if it's safe to use on my K-R.

I know very little about flashes in general and have read that some flashes can damage your camera?


Link Posted 16/06/2012 - 12:24
i wouldn't use it on your Kr,
k-5, K-5ii,60-250 f4, 50 f1.4 af,17-70 f4, 100mm macro wr,siggy 10-20 siggy 100-300f4


Link Posted 17/06/2012 - 11:39
What evidence do you have for saying that?

“We must avoid however, snapping away, shooting quickly and without thought, overloading ourselves with unnecessary images that clutter our memory and diminish the clarity of the whole.” - Henri Cartier-Bresson -


Link Posted 17/06/2012 - 12:26
I dont have one personally..But many of my camera club members use them, with no problems at all.
K-1Gripped K-1 ungripped K-5ii K7 Various lenses



Link Posted 17/06/2012 - 16:04
Pentaxophile wrote:
They seem to have a safe trigger voltage, and lots of people are using them, so I would think it'd be fine!

It looks a rather basic unit though - there are equally cheap 2nd hand flashes out there which offer a bit more in the way of manual or even auto (thyristor type auto) control, and most importantly, tilting heads.

zero86r already has one And it has a tilting head (not swivel though); see e.g.

And with the sensor you can use it as an optical slave, according to above linked description.
Pentax K10D + Vivitar 55/2.8 macro + Super Takumar 55/1.8 + SuperMultiCoated Takumar 85/1.8 + SuperMultiCoated Takumar 135/3.5 + SuperMultiCoated Takumar 200/4 + Super Takumar 300/4
Pentax K100D + DA18-55ALII + DA55-300
Pentax K5 + FA31Ltd + M50/1.7 + DFA100WR + M120/2.8 (+ DA18-55WR at occasion)
Last Edited by sterretje on 17/06/2012 - 16:07


Link Posted 17/06/2012 - 20:04
Oh, I see - that's quite a neat little design!

I have seen reports that the 'sensor' is just a dummy though:

What appears to be an optical sync, is just decoration. Pre-fabbed for a different model I would assume. Getting a charge rate of about 3 seconds (7 seconds claimed by the manufacturer).



Link Posted 19/06/2012 - 17:56
Thanks for your responses guys, better safe than sorry! The sensor does appear to be a fake, at least on my version, but for the price I can't complain.


Link Posted 05/09/2012 - 07:52
I know photographers using this as additional lighting with triggering. Don't have any experience putting it on camera.
Life is full of frames but only few of them will be captured.
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