LCT
ex-newbie
There is no such things as 18.6mm lenses. A 28mm lens is a 28mm lens. If you put it on a cropped body, it crops the field of view (28 x 1.5 = 42mm) but the lens will remain a 28 for ever.
I need your help with choosing a new lens
- Thread starter Eyal_bin
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Eyal_bin
Established
Thanks, now I am 100% sure, but, what that this actually means is that the "35mm" frame is actually ~50mm in film RF... I actually wanted to get the equivalent of 35mm film FoV, so there is no solution for me 🙁
As for logical design, well, I have seen some odd design decisions in the RD-1 (the white balance signs, ridiculous battery life time) so I don't take anything for granted. Don't get me wrong, I am totally in love with this camera, my best purchase ever, but it's like it has its own attitude that I have to get used to.
Thanks for clarifying this issue for me.
Eyal.
Pablito
coco frío
There would be no perceptible difference between a 23 and a 24mm or 25mm lens. Those focal lengths are quite common and available from various manufacturers.
Eyal_bin
Established
You are correct, but this is not the issue, I will also need to able to see a 35mm frame through the camera's view.
LCT
ex-newbie
Not sure if you understand here. Whatever body you choose, a 35mm lens will always bring up 35mm frame lines. What is changing is the field of view. If you put your 35mm lens on a M6 the 35mm frame lines will show you a (more or less) 35mm field of view. But if you put the same lens on a cropped body like the R-D1, its field of view will become 35 x 1.5 = 52mm. Now what you're after is a lens giving you a 35mm FoV right? No problem at all. Take a 24mm lens, screw it on your R-D1, and you'll get a field of view of 24 x 1.5 = 36mm.
Eyal_bin
Established
Yes, I've got this part O.K. I will try to be more percise - let's say I have a 24mm lens on the camera (= 35mm on a film RF), before taking the photo I want to be able to see the scene's framlines in my view finder, since there are no 24mm framelines for the RD-1 I can't tell where are my scene's limits.
Have I got it right?
LCT
ex-newbie
Yes we have all this problem here. There are no 24mm framelines in the R-D1 viewfinder contrary to its later competitor the Leica M8. So what to do?
1. Either you forget the frame lines and you use the entire finder window for framing. Not perfect but it gives a good approximation.
2. Or you buy a 35mm external viewfinder. But you'll have to use the R-D1 viewfinder for focusing. Could be better.
3. Or you do like me. A i said above (or in another thread, don't remember) a 24mm lens is a 24mm lens. I mean it will have a 36mm FoV on the R-D1 for sure but it will still behave like a 24mm lens (more or less) as far a depth of field is concerned. So with a bit of practice you might think soon or late that you have not the same feelings with this 24mm lens decidedly and you might wish to try a 28mm lens instead. And then miracle! (perhaps). If you are like me, you will use the 28mm like a film 35mm despite its 42mm FoV. Just my own feeling, yours could be totally different, but worth a try anyway. Because then you can use the 28 frame lines and life is great again! 😉
1. Either you forget the frame lines and you use the entire finder window for framing. Not perfect but it gives a good approximation.
2. Or you buy a 35mm external viewfinder. But you'll have to use the R-D1 viewfinder for focusing. Could be better.
3. Or you do like me. A i said above (or in another thread, don't remember) a 24mm lens is a 24mm lens. I mean it will have a 36mm FoV on the R-D1 for sure but it will still behave like a 24mm lens (more or less) as far a depth of field is concerned. So with a bit of practice you might think soon or late that you have not the same feelings with this 24mm lens decidedly and you might wish to try a 28mm lens instead. And then miracle! (perhaps). If you are like me, you will use the 28mm like a film 35mm despite its 42mm FoV. Just my own feeling, yours could be totally different, but worth a try anyway. Because then you can use the 28 frame lines and life is great again! 😉
Ronchnam
Established
I agree. I use a 28 2.8 Rokkor with the 28 frame lines and it ok. But if I want to know the image captured I use an CV external 35mm viewfinder and it fit exacly. So, for me, the 28 mm is the ideal lens if you want to get a 35mm film Fov
phototektour
Established
😀
Yes, no reason not to be,
and thinking about i.e. 28mm at a 6x6 camera as a super-wide
or 28mm at a pointandshoot with a 2/3"-Chip as a super-tele
and remembering the manual "the framelines on the R-D1 are refering to the focal length of a lens".
As you already said "28mm are 28mm are 28mm"
and it depends on what you, that means your camera, that means the format of your camera is making of.
The physical optical laws keep the same, the depth of field is unchanged. But the fov changes.
And a crop factor is only important in relation to a full-frame camera. But what is full-frame? 35mm-camera???
So, I mean, don´t think to much and forget thinking in terms of a 35mm-camera.
Take it as it is, (R-D1 is made for a Tri-Elmar (and of course for some other insignificant lenses 🙂) changing the format is playing with the fov while keeping depth of field...
R.
