benveniste
Subscriber
- Joined
- Nov 1, 2007
- Messages
- 528
- Format
- Multi Format
1. Is the one stop difference really significant?
I found it to be. In fact, in the 1980's I elected to buy a Tokina 80-200mm f/2.8 instead of the f/4 AI-s. I then switched to 1-ring Nikon 80-200mm f/2.8ED much like the one you are considering. Only after that did I add an 80-200mm f/4 AI-s, because I was planning to switch to a 70-200mm f/2.8 VR which would not work with my Nikon FA.
The extra stop comes in handy in several different ways. The first is when shooting handheld in available light or in "golden hour." Even when I was younger my ability to avoid shake was no better than average. The second is the ability to limit depth of field for candid portraiture. The third is that when you add a teleconverter to an f/2.8 lens, you're more likely to be able use focus aids than with an f/4 lens. Depending on how you plan to use the lens, none of these may be a limitation for you.
2. Is there anything else that makes the 2.8 ED a better choice?
I find that the f/4 lens has greater chromatic aberration than the f/2.8 at longer focal lengths. When using a polarizing filter, the f/2.8 does not rotate with focus; the f/4 does. On the flip side the f/4 focuses more closely than the f/2.8.
3. The focusing and zooming mechanism feels the same?
In my opinion the f/4 has better focus feel.