Frage von Pschniek:
Hello dear Slasher!
I have a little beginner question:
"There are a lot of Lenses with autofocus. Can the exhibit?"
- Has the autofocus a "s.Lens On / Off switch?
- Is the focus might somehow be fixed permanently on the Lens?
- Is synonymous with a "turned off" Auto Focus Lens, the same may well prefer, as with a manual focus lens?
- Can I unscrew an autofocus lens on my LetusMini not that I have any loss in image quality?
Sorry, there are many questions, but I know that you can help me!
Thanks in advance!
Antwort von alibaba:
AF Lenses are generally more expensive and you get s.35mm adapter anyway to use them anyway and you can usually just turn off the AF s.Lens, it may happen infrequently that they are not suitable for manual focus as much as they AF are focused on.
Antwort von Pschniek:
Dankesehr!
Another question followed:
"Older Lenses vs. Newer Lenses"
Is it any difference if I use older Lenses, but have the same data, such as "85mm 1:1.4?
Were there any improvements over time, on the light output?
For my picture is now very dark by the LetusMini with Canon FD 50mm 1:1.4 Lens. : (
Antwort von alibaba:
Ne is the same, therefore the intensity of her.
The adapter absorbs light.
Antwort von Axel:
Then you need to stop with Goethe: "More Light!"
It is of course that is used in older lenses in several respects, wear, mechanical, moved easily in terms of lenses, optical, possibly as far as the abrasion of a sealant and by pollution (dust between en) lenses. I once argued here in the forum that newer Lenses are generally better than older ones, but was here of people who should know, as corrected. Well then, I have just made with several Gebrauchtkäufen
experience. With light intensity but age has nothing to do.
Antwort von Pschniek:
Dankesehr!
Antwort von ArnAuge:
Alibaba says:
it may happen infrequently that they are not suitable for manual focus as well, since they are focused on AF. I still want you to clarify something: Manual Lenses are designed so that the Schärfeeinstellring pretty smooth running, but still comfortable with a certain resistance. A switch auto focus lenses - the manual - can often not properly set. The adjustment is too light and sharpness shift during the filming is not fun.
