Thanks to previous threads on DPC, I learned how to cover all the contacts except the middle on the flash. This allows the D70 to go all the way up to 1/8000 sec while using the flash.
TTL is not available when covering the contacts. Had to have cam on full manual...take a test shot...adjust accordingly and shoot again. The settings will work for your current set-up. If you move or point the camera at another object, I find that it will be over or under exposed. You will then just adjust again and shoot.
Here are a few at 1/3000 and 1/2000. Remember, these may not be the best shots you've seen but I learned a new technique that will help me in the future thanks to the DPC forums.
I can't find the original thread...you may want to search for it. However, I think it was pretty much more dependant on the Flash. If I remember correctly, many flash units and cams will work like this.
Covering up the contacts simply tricks the camera into thinking there is no flash open and will allow any shutter speed to be used! You will have to adjust each shot "manually".
In short, it works for those cams that hes an electronic shutter to obtain high shuter speed, but not for those that depend on a mechanical shutter. All Canon DSLRs use a mechanical shutter. They must do so since they use CMOS sensors instead of CCD sensors.
and...what is better or what is different between mechanical and electronic shutter?
Skid
Originally posted by kirbic:
In short, it works for those cams that hes an electronic shutter to obtain high shuter speed, but not for those that depend on a mechanical shutter. All Canon DSLRs use a mechanical shutter. They must do so since they use CMOS sensors instead of CCD sensors.
Which part dosn't work on Canon? My 430 lets me use whatever shutter speed I want with that high speed mode. That different than what he's achieved here?
Not sure if you are using a "flash" with the high speed. That is what started this!
Originally posted by routerguy666:
Which part dosn't work on Canon? My 430 lets me use whatever shutter speed I want with that high speed mode. That different than what he's acheived here?
However, I think it was pretty much more dependant on the Flash. If I remember correctly, many flash units and cams will work like this.
It is more dependent on the camera, as it must have a CCD shutter as well as the focal plane shutter. The flash doesn't matter. The newest units, old hotshoe units, studio flashes, etc all will work. The taping of the contacts of newer flash units is only because of the sophistication of the communication between the camera & the flash. The camera knows the flash is on, so it doesn't allow you to set a higher speed than the specified highest sync. Covering the contacts only cuts the communication between the two. Of course your high tech iTTL flash is now a dumb flash, but if you need the speed who cares?
and...what is better or what is different between mechanical and electronic shutter?
Skid
Originally posted by kirbic:
In short, it works for those cams that hes an electronic shutter to obtain high shuter speed, but not for those that depend on a mechanical shutter. All Canon DSLRs use a mechanical shutter. They must do so since they use CMOS sensors instead of CCD sensors.
The CCD is more expensive to produce...that's why a lot of the newer cameras use CMOS because it's cheaper to manufacture.
As far as the difference in mechanical and electronic, the only difference that matters to anyone will be the difference in flash sync speeds. The d70 syncs automatically up to 1/500 and I believe most canons are 1/250...is that an advantage? Well it depends how you look at it because 1/500th at ISO 200 is the same as 1/250 at ISO 100...so it seems there's no real advantage unless the camera could sync at 1/500 at ISO 100.
I've played around with my flash like that before, it was a lot of fun.
Which part dosn't work on Canon? My 430 lets me use whatever shutter speed I want with that high speed mode. That different than what he's achieved here?
What's different is *how* it's achieved, and yes, the end results will be different. Read up on the Canon high-speed mode. It strobes the flash to "follow" the moving shutter opening to maintain full illumination, even when the shutter is never fully open (only an open slit traversing the sensor). This will yield subtly different results than posted. Motion at the last-exposed one part of the frame will be stopped slightly later than in the first-exposed part.
I tell ya D...I got about 25 shots that I didn't post and they are all pretty cool! Most were of water or those ducks. I even had some at 1/6000 but came out a little dark. It was a little eaiser at 1/3000 or below. Lots of fun doing this and very easy to do!
Originally posted by deapee:
Originally posted by kenskid:
Not to hijack my own thread but...
what is better...cmos or CCD...
and...what is better or what is different between mechanical and electronic shutter?
Skid
Originally posted by kirbic:
In short, it works for those cams that hes an electronic shutter to obtain high shuter speed, but not for those that depend on a mechanical shutter. All Canon DSLRs use a mechanical shutter. They must do so since they use CMOS sensors instead of CCD sensors.
The CCD is more expensive to produce...that's why a lot of the newer cameras use CMOS because it's cheaper to manufacture.
As far as the difference in mechanical and electronic, the only difference that matters to anyone will be the difference in flash sync speeds. The d70 syncs automatically up to 1/500 and I believe most canons are 1/250...is that an advantage? Well it depends how you look at it because 1/500th at ISO 200 is the same as 1/250 at ISO 100...so it seems there's no real advantage unless the camera could sync at 1/500 at ISO 100.
I've played around with my flash like that before, it was a lot of fun.
