All Forum Comments
Comment by Don posted on According to Ricoh Imaging France at 07/11/2013 - 20:25
Yes but if you were into strobism, it might rule Pentax out since Nikons offer a faster sync speed and, crucially, allow you to shoot at higher speeds if you really want to, something Pentax has prevented you doing. In software. Cos the black bar thing is something you can work around. As the Nikon shooters prove by shooting up to 1/400 and higher to overpower ambient light. Ok so they get a little bit of a black bar. The option to shoot at higher speeds shouldn't be taken out of our hands.
they were all for hacks, and work arounds, until sponsors convinced people you need a "gary fong" rather than a paper cup… etc.
but..
as a guy who shoots BOTH studio style AND strobist style lights, I assure you
I never "hit the ceiling" on the issue of top sync speed. EVER. it's a non issue, unless you're talking to a sales clerk that has ten rows of Canikon gear on the shelf to unload…
Comment by Don posted on According to Ricoh Imaging France at 07/11/2013 - 14:30
but you'd have to be pretty bad at math to think it makes sense to switch.
Comment by Don posted on According to Ricoh Imaging France at 07/11/2013 - 11:32
The speed of a focal plane shutter remains the same once the point is reached where the shutter speed is controlled by the width of the slit that crosses the sensor plane.
I was anticipating that a faster running shutter might not last as long, but then the difference of 1/3 stop isn't going to break the bank, so to speak.
As mentioned above somewhere, it might also be limited because of the SR system.
The design engineers could tell us.
every additional oz of weight savings and every single gain in horsepower can cost thousands...
so the jump to a faster shutter could very well mean a shorter shutter life OR making the shutter out of much more expensive material.
Remember the old cloth shutters when 1/60 sec was blazingly fast and 1/500 sec was tops? plastics and aluminum made the leap to 1/180 and 1/4000…
so it's possible to get faster sync but maybe cost vs benefits is the issue..
or maybe it's something else… might be the flash tubes can't be matched to the faster speeds…. and having to force customers to upgrade all thier flash units to take advantage of a faster shutter would garner some complaints from customers?
maybe with the new flash units out, a faster shutter is coming down the pipes from pentax in the near future?
Yes, thats not an excuse. So we're still not really getting any closer to understanding why we can't have flash sync at 250th?
Comment by Don posted on According to Ricoh Imaging France at 07/11/2013 - 11:13
I'm not sure why Pentax have decided to limit sync at 1/180 rather than 1/250; either it's something to do with the shutter system or their engineers are just bloody minded/over cautious. Many users choose to over ride the max. syn speed (on other brands, where it appears to be possible) because sometimes a higher sync speed is worth the risk of black bars appearing in the shot.
link
Comment by Don posted on According to Ricoh Imaging France at 07/11/2013 - 03:34
most likely based on aps-c with k-30 internals and a LX styled body..
Nikon df video
and it will be affordable!
Comment by Don posted on According to Ricoh Imaging France at 06/11/2013 - 18:25
Need a model with 1/250th flash synch -- Canon T 90 and Nikon did it years ago !
Comment by Don posted on According to Ricoh Imaging France at 05/11/2013 - 15:04
materials included seamless white, cheap cellophane wrap in translucent blue one softbox, one silver umbrella, one gridded reflector, 3 monoblocks.
the key to this effect was to have the model on the floor looking up. she was laying on the cellophane, we tussled her hair, did the lighting and shot from a scaffold type ladder from directly above.
then we added a layer in photoshop, adding the blue photo filter, some scratches and used frost brushes to brush in the frost on the top layer.
a little dodging and burning was all that was done to the image layer with the model.
the sense of depth comes from the lighting on the model, and the frosted top layer, and the make-up.
Comment by Don posted on NSFW Ice PRoject at 04/11/2013 - 11:44
give you a hint. there is actually a little bit of photoshop in this image.
Comment by Don posted on NSFW Ice PRoject at 04/11/2013 - 01:32
Comment by Don posted on NSFW Ice PRoject at 03/11/2013 - 23:08


:3496ace15f="johnha"]
Interestingly, the D610 spec sheet says this:
="they of whom we may not speak wrote:
X=1/200 s; synchronizes with shutter at 1/250 s or slower (flash range drops at speeds between 1/200 and 1/250 s)
it sounds counterintuitive, but.. all flash pulses are not created equal, such a longer flash burst would actually allow for it's own motion blur under some circumstances….
but some flash units have faster bursts than others and some get color shifts at the beginning and and of the burst which shouldn't show up under normal shutter speeds…
my studio strobes cannot freeze acton as well as my portable strobes on low power settings. Longer burst duration….