[repaap]

Is that Kermit?

No, it is early version of Theta.

[reh321]

No, it is early version of Theta.

The color looks like something Pentax might use.

[monochrome]

The color looks like something Pentax might use.

On a K-S1.

.:

[stevebrot]

My experience is the opposite. I don't like the fisheye effect, but I find that 10-20mm {rectilinear} on an APS-C makes me feel that I'm intimately in the picture instead of being an observer looking from the outside.

Pity...our eyes are not rectilinear. I for one find rectilinear ultrawides a little disturbing as in "Why is everything except the center so stretched? Am I on drugs?" type of disturbing.


Steve

(...has done a lot of tight landscape work with fisheyes that nobody believes were taken with a fisheye...)

[stevebrot]

Where is new lenses, men??? )

Unlike us, they are hanging out with the women.


Steve

[LensBeginner]

Pity...our eyes are not rectilinear. I for one find rectilinear ultrawides a little disturbing as in "Why is everything except the center so stretched? Am I on drugs?" type of disturbing.


Steve

(...has done a lot of tight landscape work with fisheyes that nobody believes were taken with a fisheye...)

IIRC, our vision actually is rectilinear, but for a combination of factors, it isn't perceived as so.
There's the fact that the peripheral part is more "blurred" than the centre, and then what we actually see is a "mental image", reconstructed by the brain, which is a combination of two overlapping pictures.
We see with our brain, literally.

[clackers]

It would have been very hard to sneak up on the wonderful UK comic Marty Feldmann (who Mel Brooks loved):

Attached Images

 

[swanlefitte]

I did a kinda esoteric gun seminar a while ago. Turns out posture has bearing on peripheral vision. Better posture wider field. Thinking of it maybe its cone shaped and it just isnt horizontal with bad posture.

[DeadJohn]

Our eyes come with a curved sensor and only a single focal length. Long exposures don't work well; if I put on sunglasses and stare at someone for a minute, they get annoyed and don't blur away.

[reh321]

Pity...our eyes are not rectilinear. I for one find rectilinear ultrawides a little disturbing as in "Why is everything except the center so stretched? Am I on drugs?" type of disturbing.

(...has done a lot of tight landscape work with fisheyes that nobody believes were taken with a fisheye...)

My rectilinear lens shows scenes just as I saw them. Everything is straight, and nothing is stretched.

[Class A]

However the area of focus is much smaller (60°), and it's from that one that we get the usual approximation of a "normal" lens.

The concept of a "normal" lens is not related to angle of view but to perspective distortion based on certain assumptions about viewing conditions. In the case of stills photography, the assumption is that one will look at an image from a distance that corresponds to the diagonal of the image. Hence, a "normal" lens has a focal length that is equal to the diagonal of the sensor (~43.3mm in case of FF, hence the FA 43/1.9; 50mm lenses are often referred to as "normal" lenses but strictly speaking would require looking at an image from a slightly larger distance than the image diagonal would suggest).

[bxf]

Can we ask the same to Ogl , which just as well seems to be unimpressed with everything Pentax does lately as the Kp, K-1ii, 50mm 1.4 , etc; and just keep repeating the same things over and over?

Thanks

Hmmm, I've been thinking that Ogl has been less negative in recent months than in older times.

[LensBeginner]

Hmmm, I've been thinking that Ogl has been less negative in recent months than in older times.

Maybe he's ogling a new camera...

[normhead]

I was wondering what characteristic of the 55mm lens would make it desirable in your viewpoint - I find that to be an awkward focal length. I like around 15-20mm for landscapes, 40-45mm for "scenes", and much longer for wildlife.

Many of us have the whole 50mm mindset thoroughly ingrained in our heads, based on 20 years of more of having nothing but a 50.

---------- Post added 06-13-18 at 09:40 AM ----------

My rectilinear lens shows scenes just as I saw them. Everything is straight, and nothing is stretched.

I keep trying to sell Mike and Jennifer that, they aren't buying what I'm selling.



Take the people out and you'd never know, but notice how the horizon line looks odd.



Rectilinear has a time an place, but I honestly think a lens with less correction would have been better for this image. It would have looked more natural.

[reh321]

Many of us have the whole 50mm mindset thoroughly ingrained in our heads, based on 20 years of more of having nothing but a 50.

Yes, but once I got my first zoom lens twenty-plus years ago, I've discovered how great it is to adjust my focal length to the perspective I want, rather than vise-versa. Looking at the pictures I take with my K-30, hardly any of them have a focal length corresponding to a 50mm on a FF camera - most turn out to be wider, not longer {as a 55mm on FF would be}