As a photographer and cinematographer, it seems like it would make way more sense to market lenses based on focal length to sensor size ratio. For most instances (unless if you are using a lens made for a different sized sensor), this seems like it would be much more intuitive.
RichardChen9
I think later in the lecture the prof mentions that they market lenses based on a standard sensor size
bbtong
They do, based on crop or full-frame sensors. For example, with Nikon, that's the difference of say, a D5300 crop frame sensor, versus a super expensive full-frame sensor. They also sell adapters for this though!
killawhale2
Yes, they just use the focal length for a 35 mm sensor to denote the FOV.
kingdish
Due to the size of a phone, it seems impossible for a phone to have a large image sensor.
serser11
Can the angle be larger so that short focal length can also work with large sensor?
serser11
Oh nvm. I forgot that we need to maintain FOV
serser11
Build on what @kingdish said. For the phones, which is the most limiting factor, short focal length or small sensor? I feel like it would be the focal length since the phone can't be too thick. On the other hand, having a larger sensor could be workable except for the expense. Are modern phones using multiple lenses to help deal with this?
michaeltu1
Not entirely sure how zooming is done on phones, but one option that Apple gives to iPhone users is the option to purchase add-on telephoto lenses like the Olloclip XS Max Clip
As a photographer and cinematographer, it seems like it would make way more sense to market lenses based on focal length to sensor size ratio. For most instances (unless if you are using a lens made for a different sized sensor), this seems like it would be much more intuitive.
I think later in the lecture the prof mentions that they market lenses based on a standard sensor size
They do, based on crop or full-frame sensors. For example, with Nikon, that's the difference of say, a D5300 crop frame sensor, versus a super expensive full-frame sensor. They also sell adapters for this though!
Yes, they just use the focal length for a 35 mm sensor to denote the FOV.
Due to the size of a phone, it seems impossible for a phone to have a large image sensor.
Can the angle be larger so that short focal length can also work with large sensor?
Oh nvm. I forgot that we need to maintain FOV
Build on what @kingdish said. For the phones, which is the most limiting factor, short focal length or small sensor? I feel like it would be the focal length since the phone can't be too thick. On the other hand, having a larger sensor could be workable except for the expense. Are modern phones using multiple lenses to help deal with this?
Not entirely sure how zooming is done on phones, but one option that Apple gives to iPhone users is the option to purchase add-on telephoto lenses like the Olloclip XS Max Clip