Fred - (This may be a daft question!) - When comparing AOV I note that most people quote the diagonal angle. Would the horizontal angle not give a better representation of what is being captured as it will relate to the edges of the image? (or does it not really matter what one you compare as long as you are consistent?)
EDIT - Heres a table of AOV on some popular focal lengths
I use the Android app "Hyperfocal Pro" for angle of view and DoF calculations, and it works well. "Hyperfocal" for iOS looks to be an entirely different product, however, and not very well received.
Apr 05, 2018 at 08:32 AM
imagesfromobjects Offline • • • • Upload & Sell: Off
Usually, my kit is 28/50. 28/40 works, but yes - not too distinguishable in some situations. With the Ultron 28mm, sometimes I have to check the exif or I think it's the 40. Other times its obvious. I may pick up a 24mm at some point, but I'm going to be patiently awaiting the release of the CV 21/3.5 E mount. 28/40 works, or just one or the other works, if I want to go minimal. nehemiahphoto wrote:
Very interesting guys. My only gripe with the lens is the FL. I like best the 32mm of the Rx1 and pentax 31 Ltd.
The photos feel close to a 50mm to me. Fred measured it and it’s really about 43.5mm.
Usual manufacturers release the diagonal measurement at infinity, so as long as we compare apples to apples, it should be fine.
Their numbers may vary from their listed focal length though as lenses have an approximate FL and that changes depending on distance due to breathing.
Fred - (This may be a daft question!) - When comparing AOV I note that most people quote the diagonal angle. Would the horizontal angle not give a better representation of what is being captured as it will relate to the edges of the image? (or does it not really matter what one you compare as long as you are consistent?)
EDIT - Heres a table of AOV on some popular focal lengths
imagesfromobjects wrote:
Usually, my kit is 28/50. 28/40 works, but yes - not too distinguishable in some situations. With the Ultron 28mm, sometimes I have to check the exif or I think it's the 40. Other times its obvious. I may pick up a 24mm at some point, but I'm going to be patiently awaiting the release of the CV 21/3.5 E mount. 28/40 works, or just one or the other works, if I want to go minimal.
+1 regarding 28 going along with the 50 for me. If I am consider anything between 28-40, I would definitely just be sticking with one lens and working it out.
If I have had to pack a wide to go with the 40, I've been throwing in the Sigma 20 Art or just grabbing the Fuji with 24mm equivalent for a two body setup. Those two actually provide and feel like a much bigger departure from 40 than the 28.
2 * arctan (43.3 / 2xFL) where 43.3mm is the full frame diagonal size. You may use 24mm or 36mm if you want to find out the vertical or horizontal AOV respectively.
xpfloyd wrote:
I can see myself carrying the 28 and 40 at times so that when I need AF I can switch to the 28.
I do the same, but Batis 25 and CV 40. A great 2 lens walkaround setup. The Batis (or cheaper Sony) 85 makes it a supreme 3 lens kit that is small and fairly light.
I am pretty curious to see the CV 50 1.2...if it's magical like the 40 1.2, I'll sell swap my 40 1.2 and be happier for it. I can go back to my 21-28/35-50 set up.
Thanks for the calculation answer Fred.
Am I the only one using the m-mount 40 on e-mount without AF?
smpetty wrote:
I do the same, but Batis 25 and CV 40. A great 2 lens walkaround setup. The Batis (or cheaper Sony) 85 makes it a supreme 3 lens kit that is small and fairly light.
I haven’t received my cv40 yet (arrives tomorrow) but I’m wondering if 28/40/55 would work but concerned the 55 is too close. That would be a really small 3 lens setup. Might have to switch my batis 85 for the 55 if it is too close
Actually talked to Steve Gandy at Camera Quest today. He said anyone that ordered the CV40 as of yesterday would be getting the lens shipped this week. Looks like I might have lucked out ordering it on April 3rd. He said as of yesterday he was sold out again.
xpfloyd wrote:
I haven’t received my cv40 yet (arrives tomorrow) but I’m wondering if 28/40/55 would work but concerned the 55 is too close. That would be a really small 3 lens setup. Might have to switch my batis 85 for the 55 if it is too close
In my dinky bag I have a g21, g28 and CV 40 1.2 right now. And I have a tele on the camera.
