I just bought D90 for about 3weeks, it seem cant "talk" with my flash SB-28....yesterday and today same problem happens....
Firstly, when I attach flash to D90 my macro lens not able to use when is in AF mode, but if I switch to M mode its work fine. I can manually twist to focus the object but the Aperture show in the flash LCD wont talk to each others, I've to set in D90 and in Flash.
Secondly, while I was shooting for few shots it work ok (in M mode) then suddenly after 1 shot it can give me "Err" error message....then the f-number changed to f/90 and I cant do any adjustment at all.....I off and on D90 + flash problem also cant go away....then dont know how, it will come back to normal by itself.
Thirdly, I found that sometimes when I shoots the ext TTL flash wont "flash" at all and all my picture taken was UE. I checked TTL power is ok nothing wrong~
Is the flash got problem casuing the D90 not perform/function rightly?