blazer_workz
Senior Member
Buttie chiu got try the atlas can sync at speeds faster den 1/250s?
sync speed ish limited by camera shutter..
Buttie chiu got try the atlas can sync at speeds faster den 1/250s?
sync speed ish limited by camera shutter..
:embrass: .. hope bbbutties don't mind, but being a technical person, I have taken a look at my remote flash kit and realized that they are;
Frequency - FM 433 MHz
Sync Speed - 1/500 sec a range of 30 meters.
From that itself, I don't see how it will hinder normal usage. Even with the flash mounted on the hotshoe (direct transmission), we can't shoot above 1/250 as I remember experiencing a dark band at the bottom of the image trying at 1/320 shuttle speed. Hence I conclude the limitation lies more with shuttle operation (lag) and not the transmission speed.
During the tEachEr shoot, I did a couple of test shots when switching over to the Beast to determine both exposure and possible sync speed. I just converted the RAW and resize it as below;
http://farm5.static.flickr.com/4152/4947666301_80f9e18456_z.jpg
Can't read the full EXIF but remembered shooting between f/8 ~ f/16, however the shuttle speed still register. The upper one is 1/200 while the bottom one is 1/400. The dark area at the bottom isn't much heavier than previous experience with 1/320, hence I am confident that even operating at 433 MHz, it will be really good enough.
In accordance IEEE, higher Hz mainly equates to bigger payload and longer range rather than speed. In a simple device such as the remote trigger (singular function encompassing dry contact mainly), I don't really think the higher Hz counts, even if TTL function is build in. Most broadcast are utilising VHF and UHF anyway, i.e. < 900 Mhz.
2.4 GHz as I read were the standard set by IEEE code 802 for data transmission in the medium to long range, hence most of our devices/broadband/computer related stuff are operating on a section of this code namely 802.11b and 802.11g. It is about 2 stops above the VHF I think classified as the "S" band if I'm not mistaken.
Infact, research has found that 2.4 GHz transmission are most prone to electromagnetic inteferences after it was implemented and gained widespread usage. Our data phones are using this frequency btw. see link below
http://en.wikipedia.org/wiki/Electromagnetic_interference_at_2.4_GHz
Hi-spec may not always works better depends on the scale of applications. Hence fibre-optics didn't quite took off for domestic purposes. Despite it higher speed compare to electrical signal, the gain in low range usage doesn't justify due to data modulation and de-modulation are done in electrical speed. Over long range, they have advantage as electrical signal deminishes over distances and required more intermediate boosting.
I ish noob :embrass:
Allo buttie long time no see riao when come out soot again?
:embrass: .. hope bbbutties don't mind, but being a technical person, I have taken a look at my remote flash kit and realized that they are;
Frequency - FM 433 MHz
Sync Speed - 1/500 sec a range of 30 meters.
From that itself, I don't see how it will hinder normal usage. Even with the flash mounted on the hotshoe (direct transmission), we can't shoot above 1/250 as I remember experiencing a dark band at the bottom of the image trying at 1/320 shuttle speed. Hence I conclude the limitation lies more with shuttle operation (lag) and not the transmission speed.
During the tEachEr shoot, I did a couple of test shots when switching over to the Beast to determine both exposure and possible sync speed. I just converted the RAW and resize it as below;
http://farm5.static.flickr.com/4152/4947666301_80f9e18456_z.jpg
Can't read the full EXIF but remembered shooting between f/8 ~ f/16, however the shuttle speed still register. The upper one is 1/200 while the bottom one is 1/400. The dark area at the bottom isn't much heavier than previous experience with 1/320, hence I am confident that even operating at 433 MHz, it will be really good enough.
In accordance IEEE, higher Hz mainly equates to bigger payload and longer range rather than speed. In a simple device such as the remote trigger (singular function encompassing dry contact mainly), I don't really think the higher Hz counts, even if TTL function is build in. Most broadcast are utilising VHF and UHF anyway, i.e. < 900 Mhz.
2.4 GHz as I read were the standard set by IEEE code 802 for data transmission in the medium to long range, hence most of our devices/broadband/computer related stuff are operating on a section of this code namely 802.11b and 802.11g. It is about 2 stops above the VHF I think classified as the "S" band if I'm not mistaken.
Infact, research has found that 2.4 GHz transmission are most prone to electromagnetic inteferences after it was implemented and gained widespread usage. Our data phones are using this frequency btw. see link below
http://en.wikipedia.org/wiki/Electromagnetic_interference_at_2.4_GHz
Hi-spec may not always works better depends on the scale of applications. Hence fibre-optics didn't quite took off for domestic purposes. Despite it higher speed compare to electrical signal, the gain in low range usage doesn't justify due to data modulation and de-modulation are done in electrical speed. Over long range, they have advantage as electrical signal deminishes over distances and required more intermediate boosting.
anyone interested to go short trip next jan?
maybe phuket or chiangmai etc?
Thailand is good !!!!
me me me...
cannot go :cry:
anyone interested to go short trip next jan?
maybe phuket or chiangmai etc?
being bachelor is good :heart:
Good stuff!:thumbsup:
don't play play.. serious stuff.
:embrass:.. nose problum...moi ish de juz hope moi bbbutties hwill not be taken in by sales pitch and buying more than is needed......:sweat:
anyone interested to go short trip next jan?
maybe phuket or chiangmai etc?
ghost during songkran next year! :bsmilie::bsmilie:
sales tok is beri de powderpool huan... huait becum MASter BBB sho many pcc wizards but but he ish MASter... :embrass:
Next year ish de gotz 1DsmkIV liao :sweatsm:Huait cameller ish de gotch wet.......den ish de 1Ds Mk III........:sweat: .... no tankz...:cry: