Electronics > Projects, Designs, and Technical Stuff
A simple tool to aid in reverse engineering a PCB
<< < (5/7) > >>
Simon:
I curse the man that put a camera in a phone. they hidiously distort the image, hence why i still paid hundreds of pounds for an SLR.
Dubbie:
The lens in your average phone camera doesn’t have particularly bad distortion. I know because it have measured it on my phone many times.
Simon:

--- Quote from: Dubbie on December 01, 2018, 08:20:19 am ---The distortion in your average phone camera doesn’t have particularly bad distortion. I know because it have measured it on my phone many times.

--- End quote ---

Until you realize how many people are having facial surgery because they beleive their phones :)
Dubbie:
I think that is just the reality of rectilinear projection on a wide angle lens closeup.
Simon:

--- Quote from: Dubbie on December 01, 2018, 08:27:14 am ---I think that is just the reality of rectilinear projection on a wide angle lens closeup.

--- End quote ---

define wide angle lens..... most camera's that are not SLR's are sold on their equivalent to 35mm frame lons length. This is because the field of view depends on the lens length and the frame size. Once the world had defined standards the last being the 35mm frame format. with this format a 50mm lens gave the closest match to a human eye's field of view and sense of pespective. Anything less was wide angle or fisheye in extreme cases and anything more was telephoto. Wide angle having potential distortion and fisheye - well they called that an artform. Then digital came along and sensors got smaller, this meant that the lens for the same field of view had to be shorter. My first bridge camera had a 6mm sensor and my lens was marketed as a 18-300mm, in reality it was 6.2-66mm. I used to find zommed shots more pleasing and eventually worked out this was because at 50-66mm i was getting a truer prospective. Zoom lenses themselves are a compromise and introduce distortion. I have kept my 50mm prime lens that came with my camera because it is very useful for any people shots. Having recently compared two photos with the same people taken with that lens and a phone I can assure you that there is a difference. You won't see it in buildings etc but in faces that we humans are particularly attentive to and all the more so when it is our own there is a difference. Distortion is not constant and worse at the edges of a lens.
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod