[davidmanze]

Then why not medium format ??

For ultimate image quality there's medium format, for size and weight you have MFT

 Not really the best suggestion for BIF!!

 

   I don't know many medium format bodies that give sufficient reach per mm FL, let alone the lenses to go with them, a 500mm on MF would need a to be an 850mm there.......

 

         .......or were you proposing a loan? 

[Brightcolours]

I don't know many medium format bodies that have sufficient reach let alone the lenses to go with them, a 500mm on MF would need a to be an 850mm there.......

 

         .......or were you proposing a loan? 

The "affordable" "medium format" digital cameras only have a 0.79x crop factor... So that means you only need a 633mm lens as 500mm FF equivalent. Something like a Pentax SMC A* 645 600mm F5.6 ED. Discontinued, no AF and no IS. Yeah, Toni is onto something.  :blink:

[davidmanze]

The "affordable" "medium format" digital cameras only have a 0.79x crop factor... So that means you only need a 633mm lens as 500mm FF equivalent. Something like a Pentax SMC A* 645 600mm F5.6 ED. Discontinued, no AF and no IS. Yeah, Toni is onto something.  :blink:

 

     OK 633mm!    To be quite honest good as an idea it may be..............Toni it's all yours!!   

 

 

 

  Please don't hesitate to let us know how you get on with it!