[jcoat]

I use a ultra-wide for urban landscapes... My suggestion is to get really close to your main subject (bridge, foreground building, etc). This usually involves getting a high position in an urban context... So get up close (get near and go up).

I've found that portraits with an ultrawide work best when the subject is not in the center... the distortion is unflattering at the center but can do good things like lengthen legs towards the edge.

[aslyfox]

possibly adding to the confusion about lenses and how to use them

if you are not using a full frame sensor camera ( 35mm film or K 1 or K 11 ) you have to deal with the ASP-C sensor which is physically smaller and the resulting " equivalent Field of View (FoV) "

The Crop Factor Unmasked
Field of View vs Focal Length on various formats
By PF Staff in Articles and Tips on Jul 23, 2014

Many of us have cameras with different sensor sizes; this raises the question of which lenses need to be used to get the same field of view on two different formats. Below we provide a table listing focal lengths with equivalent Field of View (FoV) across several sensor sizes. The actual diagonal field of view (in degrees) is shown on the far right. [ table omitted ]

Note that the focal length of a lens (say 50 mm) is an optical property of the lens and remains the same no matter what sensor size camera the lens is mounted on

In other words, an smc Pentax-A 50mm F1.7 lens as shown to the right is a 50 mm lens when mounted on a Pentax Q7 (1/1.7 inch sensor size), on a Pentax K-3 (APS-C sensor size), or on a Pentax film SLR (aka 24 x 36 mm or full frame). The focal length does not change with the camera. But the field of view which the lens captures does change. And so does depth of field, but that is for another article. . . .

Read more at: The Crop Factor Unmasked - Articles and Tips | PentaxForums.com



in short, a photo taken with a 35mm film camera ( or full frame sensor Digital Camera ) will not be the same as the same photo taken by the ASP-C sensor camera

[Qman]

I've found the best way to get used to a new focal length is just leave the lens on the camera and go out and shoot with it. Don't bring any other lenses with you. Then shoot lots and be bold. Experiment with new perspectives. Eventually your brain will learn how to think like a 15mm and you'll see where the good shots are.