Hi There,
I'm having difficulty focusing my Canon 40d & 400mm with a mylar filter. I get thew image very sharp in live view, but when i zoom in afterwards the sunspots are fuzzy? It it a focus issue, or is it just poor seeing? (can you get poor seeing at 400mm) -
See attachement done 3pm so sun was about 54 degree high. Thanks for your comments
Also, any ideas on seeing the LCD screen is full sunshine.
