Stop this crop factor / equivalent focal length nonsense
Jul 29, 2019 17:46:00 #
JohnSwanda wrote:
But the focal length means nothing if you don't know what the sensor size is.
When you are interested in a camera wouldn't the first thing you consider is the sensor size?
Jul 29, 2019 17:56:08 #
BebuLamar wrote:
When you are interested in a camera wouldn't the first thing you consider is the sensor size?
Have you memorized all the FoVs for each lens/sensor combination?
Jul 29, 2019 17:58:09 #
Here is an idea - get out and see what lens you need to get the picture you want and use it. Better than sitting on the couch worrying about focal lengths. - Dave
Jul 29, 2019 18:02:21 #
FreddB
Loc: PA - Delaware County
wilsondl2 wrote:
Here is an idea - get out and see what lens you need to get the picture you want and use it. Better than sitting on the couch worrying about focal lengths. - Dave
Uhh, I think you made your point, Dave 👍😈✌
Jul 29, 2019 18:11:22 #
will47 wrote:
If people thought about facts you'd never see another democrat elected. Democrats have NO ideas unless it's a way to try and buy votes.
I rest my case.
Jul 29, 2019 18:21:58 #
Converting degrees of angle for a given lens from one sensor size to another is probably more math than most UHH members can handle. The concept of "equivalent focal length", however faulty it may be, is a little easier to comprehend.
Jul 29, 2019 18:35:45 #
JohnSwanda wrote:
Have you memorized all the FoVs for each lens/sensor combination?
I know the field of view for the sensor that I use. I have zero problem with any of that.
Jul 29, 2019 19:08:58 #
paulrph1
Loc: Washington, Utah
will47 wrote:
If people thought about facts you'd never see another democrat elected. Democrats have NO ideas unless it's a way to try and buy votes.
You are correct. When I was raised we were raised to respect our elders and honor the country and the office but things have changed , no more respect and they are the ones who do all of the name calling and someone gets tired of their shenanigans and exposes them for what they are they are the ones they blame. But now you are just supposed to take the insults and forget about what they said.
Jul 29, 2019 19:12:43 #
rehess wrote:
How do you describe that lens when it is switched between cameras, one is "FF", one is "APS-C", and one has a so-called 1/1.7" sensor. Since they use different parts of the light cylinder, they will give different views.
Hahaha.
It has a different effective focal length.
(Thanks for the lead-in!)
I have no idea what the Aov is for any of my lenses, nor do I care. I'm just interested in what they "see".
Jul 29, 2019 19:14:54 #
wilsondl2 wrote:
Here is an idea - get out and see what lens you need to get the picture you want and use it. Better than sitting on the couch worrying about focal lengths. - Dave
(Send button get stuck?)
Jul 29, 2019 19:15:17 #
JohnSwanda wrote:
But the focal length means nothing if you don't know what the sensor size is.
Very true!
Jul 29, 2019 19:20:10 #
Longshadow wrote:
Hahaha. br It has a different effective focal leng... (show quote)
Opps Longshadow, the effective focal length of a lens does not change. The maximum field of view changes as a function of the size of the detector array. And then some lens can be used for a given format, but not for larger formats. But we knew that.
Jul 29, 2019 19:21:35 #
rehess wrote:
How do you describe that lens when it is switched between cameras, one is "FF", one is "APS-C", and one has a so-called 1/1.7" sensor. Since they use different parts of the light cylinder, they will give different views.
Exactly my point. All that really matters is the FoV.
Jul 29, 2019 19:22:15 #
JohnSwanda wrote:
But the focal length means nothing if you don't know what the sensor size is.
Exactly my point. Thank you.
Jul 29, 2019 19:26:26 #
JohnSwanda wrote:
.... but good luck trying to get even people just on this site to start using AOV or FOV.
Yes, we will just keep plugging along with endless questions about crop factor and focal length and 'was that a 400mm on a FF or a crop sensor'. And endless corrections that the 'focal length doesn't change.'
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