Al,

D50 flash sync speed is MAX 1/500 sec. Any value at or below that can be set but not higher. Currently on full bore your flash duration is 1/1100 sec. I hope the attached graphic explains the logic of sync speed. On any flashgun as the power is turned down the flash duration is shortened. I will read up on the SB24's SB25's & SB26's to see what you will gain.

Don

Al,

In anticipation I have downloaded the manuals for SB25 and SB26. Historically the range is SB24 - 1988, SB25 replaced the 24 in 1992 and the SB26 replaced the 25 in 1994.
Benefits over the SB22 are higher guide number of 36 ( more power ) , swivel & tilt flash head and variable power output in manual mode. Big bonus is that all three will take the Stofen Diffuser code OM-C £15:95 at Warehouse Express. This diffuser is the business and needs to be included in the budget.

From a look at these specs it seems I may have been a bit optimisic as to flash duration of the SB22 in MD mode. :rolleyes:

Here are the flash duration numbers for SB25 & SB26
1/1,000 sec at full output
1/1,100 sec at 1/2 output
1/2,500 sec at 1/4 output
1/5,000 sec at 1/8 output
1/8,700 sec at 1/16 output
1/12,000 sec at 1/32 output
1/23,000 sec at 1/64 output

Don

Well..slight improvement tonight.."maybe"? With reduced power on the MD setting I was at F8, now looking at them I dont think I've achieved the DOF required..I've noted the "wear white gloves" advice too for next time!..anyway; got to go..the daughters mirror needs putting back on her wall!
Al

WOW Al,

Now you ARE cooking. I just compared image 3 ( could actually have been 1 or 2 ) with that in your first post. Incredible difference never mind " slight improvement ".

Well done definately in order. :) :) :)

Don

Had to have a go at something else in our range..I think I now need a better sample of said piston, anyway, I needed a rest from it!.. This is not as reflective at all as the piston but the techniques, hints & advice from you all helped me produce the attached..
Al.

Al,

Very good control of the light, as all the important detail is visible. The central portion is also good as it looks to be quite a glossy surface.

Don