All Forum Comments
Comment by Anvh posted on Sigma 50-150 at 21/08/2010 - 21:54
Dangermouse wrote:
With regards to wide angle flash coverage, surely this is one of those times when a 35mm lens is a 35mm lens, regardless of whether it's on a film or an APS-C sensor body? I know I get very dark corners from a flash intended to work with a 35mm lens if I use it with an 18mm. Add the cheap diffuser I mentioned elsewhere and all is well, even with direct flash.
It's the angle of view that matters like you thinks.With regards to wide angle flash coverage, surely this is one of those times when a 35mm lens is a 35mm lens, regardless of whether it's on a film or an APS-C sensor body? I know I get very dark corners from a flash intended to work with a 35mm lens if I use it with an 18mm. Add the cheap diffuser I mentioned elsewhere and all is well, even with direct flash.
The newer flashguns do show the coverage for APS-C format but the older flashes don't have that support so will show the coverage for 135format but those numbers will be off with a factor off 1.5
gartmore wrote:
I have one AND I have read the instructions. The correct way to use them at close quarters is to tilt the head at 45 degrees. At longer distances and outdoors you use it straight on. Despite what you claim about them, outdoors, the flash gives an entirely different and rather pleasing light.
Sorry Ken but they don't work outdoors for the reason that I've said, if not show me a photo that makes a difference because I don't see a difference when I use the Sto-fen outdoors.I have one AND I have read the instructions. The correct way to use them at close quarters is to tilt the head at 45 degrees. At longer distances and outdoors you use it straight on. Despite what you claim about them, outdoors, the flash gives an entirely different and rather pleasing light.
On the lumiqeust site you can read about the different flash modifiers and the principals they work with link
This what they say about their UltraBounce (sto-fen/omni-bounce).
Quote:
Accessories such as our UltraBounce are not shadow softening devices themselves since they are not materially larger than the flash itself. These accessories are actually light distribution devices. By spreading the light over 180° it can be bounced back into the frame by nearby walls and ceilings. In relatively small rooms they are very effective at providing soft, even illumination. However, if used in large rooms or outdoors they have virtually no impact on shadow softness. Obviously it is pointless to illuminate 100° more than you are photographing if there are no surfaces to bounce the light back into the frame.
Spreading the light wider than the scene being photographed results in SUBSTANTIAL light loss
UNLESS
There are nearby surfaces (walls/ceiling) to bounce the light back into the scene.
Accessories such as our UltraBounce are not shadow softening devices themselves since they are not materially larger than the flash itself. These accessories are actually light distribution devices. By spreading the light over 180° it can be bounced back into the frame by nearby walls and ceilings. In relatively small rooms they are very effective at providing soft, even illumination. However, if used in large rooms or outdoors they have virtually no impact on shadow softness. Obviously it is pointless to illuminate 100° more than you are photographing if there are no surfaces to bounce the light back into the frame.
Spreading the light wider than the scene being photographed results in SUBSTANTIAL light loss
UNLESS
There are nearby surfaces (walls/ceiling) to bounce the light back into the scene.
Comment by Anvh posted on Wide angle flash at 21/08/2010 - 17:08
redbusa99 wrote:
still cannot find transmitter/reciever that will transmit ttl info, surely in this high tech world there must be something somewhere compatible with Pentax.
There is non for Pentax that will do that and you need P-TTL not TTL with the digital cameras.still cannot find transmitter/reciever that will transmit ttl info, surely in this high tech world there must be something somewhere compatible with Pentax.
If you want to use P-TTL the only option is to use the build-in flash, flash on the camera or using a wire, there simply are no wireless P-TTL triggers.
Non of the camera brands make triggers, so don't expect Pentax to make one.
Besides with off board the situation can get so complicated that's it's the best to use the camera and the flash in manual mode or else you've no idea what's going on with your lighting setup.
Comment by Anvh posted on how to mount flash to tripod at 21/08/2010 - 16:51
Thank you Yves, the it's wide enough for the sigma 10-20
Comment by Anvh posted on Wide angle flash at 21/08/2010 - 07:45
The wireless cactus V4 triggers have a tripod hole in the trigger I believe that you can mount on a tripod.
Probably some other triggers have it as well.
Probably some other triggers have it as well.
Comment by Anvh posted on how to mount flash to tripod at 21/08/2010 - 07:44
Just found these numbers, was at December 2009.
- 4 billion – Photos hosted by Flickr (October 2009).
- 2.5 billion – Photos uploaded each month to Facebook.
- 30 billion – At the current rate, the number of photos uploaded to Facebook per year.
So who upload photos to facebook here?
- 4 billion – Photos hosted by Flickr (October 2009).
- 2.5 billion – Photos uploaded each month to Facebook.
- 30 billion – At the current rate, the number of photos uploaded to Facebook per year.
So who upload photos to facebook here?
Comment by Anvh posted on Do you use a web Gallery? at 20/08/2010 - 20:43
jules wrote:
Now why the hell couldn't I find that!
There are at least 234 million websites so it's a wonder you can find anything at all really Now why the hell couldn't I find that!
Comment by Anvh posted on lens Registration? at 20/08/2010 - 20:39
bforbes wrote:
is it a prime number? no
It's a semi-prime, does that count? is it a prime number? no
Comment by Anvh posted on Another pointless thread at 20/08/2010 - 20:30
fatspider wrote:
So how does Pentax prove the camera was submerged and the seals are not at fault?
I've no idea and neither can the user but a new user can also be lying that he didn't submerged it so you come at the same case essentially.So how does Pentax prove the camera was submerged and the seals are not at fault?
Surely they must have a way to test it right?
But besides that a manufacture does have responsibilities over the products they make right?
The question was do you lose those rights if you buy second-hand?
Comment by Anvh posted on Second hand warranties at 20/08/2010 - 20:16
flossie wrote:
Lee 201 is Full CTB Correction.
Anyone else got a fact related to the number 201?
201 comes after 200 and before 202 Lee 201 is Full CTB Correction.
Anyone else got a fact related to the number 201?
At least with natural numbering of course.
Comment by Anvh posted on Another pointless thread at 20/08/2010 - 20:06
As for HSM vs SDM, what is the difference?