Vivitar 6000 Ring Flash on K20 or K200
Weaknesses:
Doesn't seem to work on digital SLR cameras.
I have one of these and it works just fine (although it is definitely cheap and plasticy).
Just goes to show you shouldn't believe everything you read on the Internet

It supports TTL & Manual (at full power flash), but not P-TTL.
So on my *ist D you get full automation.
On other Pentax DSLR's you have to use it in Manual (ie vary the aperture & ISO to get the right exposure).
Given this is used for Macro where you tend to be a consistent distance from the subject, I haven't found this much of a problem!
R
Weaknesses:
Doesn't seem to work on digital SLR cameras.
I have one of these and it works just fine (although it is definitely cheap and plasticy).
Just goes to show you shouldn't believe everything you read on the Internet

It supports TTL & Manual (at full power flash), but not P-TTL.
So on my *ist D you get full automation.
On other Pentax DSLR's you have to use it in Manual (ie vary the aperture & ISO to get the right exposure).
Given this is used for Macro where you tend to be a consistent distance from the subject, I haven't found this much of a problem!
R
I've plumped for a Sunpak DX8R Ring Flash to get me started, as it was new from Devon Cameras, just waiting for the Pentax Shoe Module to arrive from the USA. Reading the Manual it has three modes Manual, Auto, and TTL. I understand TTL does not operate on K200 and K20, but what should I expect to happen if I set it to Auto.
Barrie
Too Old To Die Young
http://www.pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/
I understand TTL does not operate on K200 and K20, but what should I expect to happen if I set it to Auto.
Generally, a flash having one or more 'Auto' settings has a built-in light sensor to control the flash duration. This in turn controls the exposure.
Peter E Smith
My flickr Photostream

Generally, a flash having one or more 'Auto' settings has a built-in light sensor to control the flash duration. This in turn controls the exposure.
Does that mean you can set any aperture and shutter speed and the flash unit compensates itself? That sounds too easy!!
Barrie
Too Old To Die Young
http://www.pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/
I've plumped for a Sunpak DX8R Ring Flash to get me started, as it was new from Devon Cameras, just waiting for the Pentax Shoe Module to arrive from the USA. Reading the Manual it has three modes Manual, Auto, and TTL. I understand TTL does not operate on K200 and K20, but what should I expect to happen if I set it to Auto.
I've just picked up a GX8R sunpak, though I have no manual for it, dont suppose yours covers that one too does it barrie? (probably not as the Gx8r is a bit long in the tooth now). Running mine from the pc port (as its voltage protected there) and seems to fire fine but i'm compensating manually in camera at the moment (or turning the flash output down.)
EDIT: forget the manual request Barrie, just looked up the Dx and its totally different from mine - very much more modern!
Bodies: GX20 | MZ-3 | MZ-M | Auto 110 complete kit
Primes: DA*300 F4 | DA40 F2.8 Ltd. | SMC-A 50/1.7 | Sigma 30mm F1.4 | Sirius 28/2.8
Macro : SMC-A Dental 100 macro
Zooms: 12-24 SA | 18-55 SA | 50-200 SA | 28-80 FA | 35-80 F | Vivitar 28-200
Other: Bellows | Tube sets | Vivitar 2x PK/A Tele | SEF-36PZF Flash | SBG-D1V Grip | Billingham 335
My Flickr
Generally, a flash having one or more 'Auto' settings has a built-in light sensor to control the flash duration. This in turn controls the exposure.
Does that mean you can set any aperture and shutter speed and the flash unit compensates itself? That sounds too easy!!
No, the flash will tell you to set an aperture relative to ISO so, for example, 5.6 @ 100ISO and 8 @ 200 ISO and so on. Having done that you just fire away.
Ken
“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 -

Barrie
Too Old To Die Young
http://www.pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/

Ken
“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 -
Set it to 'X' on the dial

Does that mean I can not use it on the K200 with no 'X' on the dial?
Barrie
Too Old To Die Young
http://www.pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/
Ken
“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 -
Barrie
Too Old To Die Young
http://www.pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/
bforbes
Member
Co. Durham UK
Barrie
Too Old To Die Young
http://www.pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/