But they wouldn't look any different taken with a wide angle lens, other than they'd be smaller in the frame. Crop the wide angle lens image to match and it would be the same as those.
Take a zoom lens. Take two images, one at the wide angle end, another at the tele end. Now crop the wide angle image to match the telephoto one and apart from image quality they'd be the same.
I agree using a tele lens appears to compress the subject, but its only an optical illusion as it isn't a natural view.

John K

How do you know it wasn't taken with a wide angle lens and cropped?

John K

Not normally but the effect is often used in films so it does have its uses.

[quote="wikipedia"]Forced perspective can be used to deliberately misrepresent an object's size, making something appear larger or smaller than it really is. This is common in film, where a distant castle in the background may in fact only be a cardboard model a few feet high (and much closer to the camera). These are forms of optical illusions.[/quote]John K

Changing the ISO, shutter speed and aperture would only affect the depth of field (ie how much looks to be in focus) but not the field of view.
I mentioned the different ways of showing field of view because manufacturers / retailers are not consistent as to which angle they refer to. Some camera makers (not all) confuse the matter further on small compact cameras by showing the focal lengths on the camera as 35mm equivalents without making that fact clear. If the focal lengths indicated were true the lens would have extreme telephoto properties!

ChrisA, the key point in that PhotoZone article is
so the article is completely correct as the examples show.

John K

If you are using a 16mm lens with an APS-C sensor and then wanted to get the equivalent image with a full frame sensor you'd have to use a 24mm lens.
Using that 24mm lens with the APS-C sensor you would only get approximately half the image, as if you had zoomed in.
Field of view figures can be confusing as sometimes they quote the horizontal angle and sometimes the diagonal, so make sure you are comparing like for like. Also not all APS-C sensors are the same size so you may find figures for a non Pentax sensor (eg Canon APS-C sensors are smaller than the Pentax ones giving a 1.6x crop factor instead of our 1.5x!)
Also worth considering is that the image produced by some lenses cover the full frame sensor whereas some do not, having been designed for APS-C to save size and weight.
The ISO and shutter speed used are irrelevant.

John K

As the seller says:

John K

http://www.amazon.co.uk/Sigma-24mm-1-8-Pentax-Camera/dp/B00005RKSR/ref=sr_1_28?s=photo&ie=UTF8&qid=1385253989&sr=1-28&keywords=pentax

PS it's free delivery!

John K

Hi,
If you still have the 110D you may wish to be aware that if you update the firmware to version 1.02 it does support SDHC memory cards. Link to the download from the Ricoh website here: link

John K

The distance selling regulations give you the right to change your mind and cancel an order within seven working days.

John K

The most likely suggestion is PK Tether from http://www.pktether.com/

The K110D isn't shown as being supported though that's not to say it isn't. If it isn't, an earlier version may do and there is an archive of old versions on the site. I'm sure someone will give a yay or nay as to compatibility.

John K