>Date: Tue, 23 Feb 1999 12:27:48 -0600
>From: [EMAIL PROTECTED]
>Subject: Re: 105/2.8 micro [v04.n264/13]
>Message: 13
>
>Actually, most people recomend the 60/2.8 as being the best performing Nikkor in
>the macro range. It is supposed to be the most flat field, and the most sharp.
>Contrary to what Richard seems to be saying, the 105 micro Nikkor loses 2 stops
>of light at 1:1, becoming a 105/5.6. The 200/4, however does not lose any
>light, due to its IF construction, and remains an f/4 lens at 1:1 (although it
>is no longer a 200mm lens; more like 110mm or something like that).
Is the above also true for 105 and 200 MF Micros? I mean how much light do they loose
when:
- in macro (1:2)
- 105 with extension tubes and in macro (1:1)
What happens when you focus closer the 200 IF Micro? Does it opens the field of view
and needs to reframe?
How can it turn into a 110mm that gives 1:1 at 0.5m if the 105 gives 1:1 at 0.314m?
Sorry if I'm an ignorant in optics and my questions are obvious.
Thank you,
Sergio Lopes.
