That's what I was looking for! Will give it a try ASAP. Thanks.

You can try adjusting the brightness of your camera's viewfinder: Menu-->Setup-->Viewfinder Bright  But then again once your iris has acclimatized to the ambient conditions maybe it will be too bright for comfort?

Any lens mounted on my A99 has a free play, that affects the focussing..  The free play is to do with the lens being able to push in/out of about 1mm or so, that does not seem normal to be from memory. Where should I look at, did I miss something.  It is so simple to simple insert, turn to until a click to tell me it is locked in.  Without pushing the releasse button it won't come out, so it must has been locked in properly. When pushing in the free play, I can see the release button is moving as well. Is that repairable? Where should I take it to in Sydney area for repair?  Likely expensive, or I better off junk the whole thing since it is over 5 year old.   Thanks for any pointers.