I see the hair in the veiwfinder , but it does not show up in footage, how do I get rid of it?
thanks in advance for your help, Frank

The hair is probably IN the viewfinder itself, (ie: the EVF), and not in the camera lens system, which is why it wont show up on footage. I guess you will have to dismantle the evf if you can't live with it.

Frank, I'd put a small nozzle on the vacuum cleaner hose and apply it to the 'dioptric adjustment' lever slot (focus slider) located under the view finder.

If a hair can get in, it can be got back out.

I will try your recommendation, Frank

I usually film outdoors so my viewfinder was filled with all sorts of dirt.
Put a air compressor very briefly into the opening and got rid of most.
Do not use air from a pressured can, this can freeze up your viewfinder.
With the A1 you cannot detache the eyepiece for proper cleaning like most sony's. Pity.

The reason I suggested using a vacuum cleaner is that compressed air tends to have a high moisture content.

I get dust in mine all the time, from filming races at the desert. Dust seems to get in through the eyepiece, the rest of the camera is bagged.

1. Remove the small plastic clip towards the bottom of eye piece
2. Use a shop vac at the hole where the clip was and try to make a seal with your hand while sucking the dust out.
3. Do the same where you look in the viewfinder, but first adjust the eye focus inward to create a gap.
4. Turn camera on aiming at a white wall and look in finder to see any more dust.
5. You can also put a q-tip in the hole to loosen the dust then vacuum.
6. Repeat as necessary.

I've done this many times and can usually get it clean as new.