LordV wrote:
Yes the diffuser is approx parallel to the lens but does point slightly inwards and is approximately at 2pm position when viewed from behind.
The pics below may give you a better idea. As I said you really need to do some test shots under your normal shooting settings with the flash head in different positions to find what is best for you.
Can only test inside on plants and flowers today. Its 20cm of snow outside, and still snowing. Just wanted to get some idea of what you did, because I looked at your "Annoying flies" tread, and the light looks great.
Is that the Canon MP-E60 lense you have on your camera there? Too bad Nikon does not have a lense like that, because its very fun to explore magnifications beyond 1:1, and this lense seems to give great results.
Sissel wrote:
Can only test inside on plants and flowers today. Its 20cm of snow outside, and still snowing. Just wanted to get some idea of what you did, because I looked at your "Annoying flies" tread, and the light looks great.
Is that the Canon MP-E60 lense you have on your camera there? Too bad Nikon does not have a lense like that, because its very fun to explore magnifications beyond 1:1, and this lense seems to give great results.
Yes it's an MPE-65 but as Jody Melanson keeps on showing you can get very simialr results with a 100mm macro lens, ext tubes and a reversed lens on the front - that's what I used to use - the MPE-65 is just a whole lot more conveniant
Brian V.
I also have a Brian/LordV diffuser but had trouble forming the connection to the flash. To resolve this I made a sleeve from foam board to wrap around the flash head and then taped the can formation to the foam board. Makes it real easy to get on /off the flash also made the formation of the diffuser a bit easier as you have a firm pre-shaped surface to tape it too
hydrotoast wrote:
I also have a Brian/LordV diffuser but had trouble forming the connection to the flash. To resolve this I made a sleeve from foam board to wrap around the flash head and then taped the can formation to the foam board. Makes it real easy to get on /off the flash also made the formation of the diffuser a bit easier as you have a firm pre-shaped surface to tape it too
Excellent mod
TEASER wrote:
What I dont get is after I attach the flash bracket how will I be able to put a shoe on for my tripod?
Not sure if it's the best way of doing it but you can get the male 1/4" camera attachment bolt things with a female thread on the back of them so you can attach via another male 1/4" (presumably the shoe has this).
Brian V.
first I made a typo on the extension tubes, it should be 12/20/36
so theres 68mm, add that to the 100mm macro, you got 168mm, and ~1.68:1
(I'm told that every 1mm you add in bellows/extensions it adds .01 magnification)
times that by 2 (for the 2x extender) you get 336mm divide that by 28mm and you get 12 even. All I know is grains of salt are pretty big. I just got these extension tubes today, so I haven't shot anything really.
I'm not sure what formula to follow
(Main Lens + Extensions) x (extension power) / rev. lens
Adam I'd just photograph the mm scale of a ruler then mag = sensor width/mm across pic. The calculations have some flaws in them esp where extension tubes are concerned. Somewhere between 10 and 12:1 anyway
Just wanted to get some idea of what you did, because I looked at your "Annoying flies" tread, and the light looks great. 
