Just a short post about camera flashes and trigger voltage.
Canon specifies a safe trigger voltage up to 6 volts using the hotshoe on their digital cameras. If it’s higher, it might damage the camera. So I have measured the trigger voltage on two older flashes I have lying around, since I didn’t get (m)any hits searching the interewebz.
Pentax AF-330FTZ has a trigger voltage of 3.14V
Hanimex 325AZ has a trigger voltage of 110V
So the Pentax AF-330FTZ should be safe. Hanimex 325 however, isn’t. What’s kind of scary is that I have used the Hanimex on several occasions on my 350D. Luckily no harm done (as far as I can tell).
Update: Found this web page explaining some more around this issue.
I take this to mean that all Canons DSLRs newer than the 350D, as well as all the professional models, can use flash with trigger voltages up to 250 volts in their hot-shoe. However, 6 volts is the safe limit for the D30, D60, 10D, 300D, and Canon’s digital compact cameras.
Det er ganske utrolig å se hvor mye som kan reddes i et bilde tatt i RAW-format. I bilde ovenfor kan man se at orginalen manger kontrast, og dermed fremstilles som grå og kjedelig. Bilde til høyre er resultatet etter en rask behandling i Adobe Lightroom. Kontrasten er gjennopprettet og dermed kommer fargene klarere frem. Det er naturligvis ønskelig å få best mulig resultat rett ut av kamera, men i dette tilfellet hadde jeg vært litt uheldig med innstillinger, samt at jeg skulle nok ha brukt solblender. Skal heller ikke se bort fra at UV-filteret på objektivet burde vært renset. Men er man først uheldig er det greit å vite at mye kan rettes i etterkant.
Monday I’ve ordered a Canon 50mm f/1.4 USM lens at a norwegian webshop, and yesterday I picked it up at my local post office. Even though I haven’t tested it much, the results looks promising, and I’m looking forward testing it. For once it’s actually announced great weather this weekend.
I’ve did a few test shot with myself as a subject yesterday. But since my camera, a Canon 350D, has a cropping factor of 1.6, the 50mm equals a 80mm, and then it’s real hard to hold the camera and aim at oneself. The closes focusing distance is 0.45m, and of course I wantet to get more than just my nose in the picture.
Yes, that’s me.
I stopped shaving when my vacation started and.. well.. you can guess the rest.
I’ll try to publish some more photos on Flickr at the end of the weekend.