Would you like some fish?

Monday, 11 July 2011

Sophie taken with an ultra wide angle lens, Maynooth, Ireland, 2011reflection

Here’s another weee trick that I came up with a couple of years back (but I’m sure other people must have dis­covered this too).

stated earlier that it’s usu­ally great fun to use wide angle lenses to pho­to­graph your little ones. It requires you to get in really close (oth­er­wise the kid would be lost in the image) which in turn gives a great sense of “par­ti­cip­a­tion” or “imme­di­acy” poten­tially lead­ing to some cap­tiv­at­ing shots.

But there’s a prob­lem: The corners of the image get stretched the more wide angle you go. This can lead to some rather unap­peal­ing dis­tor­tions the fur­ther your sub­ject (or parts of your sub­ject) is away from the image centre. Have a look at this image for instance, which is the uned­ited ver­sion of the pic­ture shown above. Yuk!

That said, fret not, there is a fix: The fisheye /​bar­rel dis­tor­tion. In LightRoom/​Camera RAW just go to the lens cor­rec­tion sec­tion and play with some neg­at­ive val­ues in the “Dis­tor­tion” field (in the manual tab). For instance, in the image at the top, I used –60 — and I think it looks much bet­ter than the ori­ginal! If you didn’t shoot raw, you can still do this in Pho­toshop using the built-​in Lens Cor­rec­tion plu­gin, or, altern­at­ively, fiddle with the “Spher­ize” effect (or whatever it is called in your photo edit­ing soft­ware).

As always, there are some down­sides, mainly two. Fist, you lose some of the wide-​angled-​ness (again, com­pare the above shot with the ori­ginal), and it’s a ques­tion of taste whether the arti­fi­cially intro­duced dis­tor­tion is accept­able (this is not very obvi­ous here, but it will be much more notice­able when you have straight lines in the image).

Focal length: 10 mm (≈15 mm)
Aperture:ƒ/3.5
Exposure:1/60 s
ISO:3200
Lens:Tamron 10-24
Location: Maynooth, Ireland
Posted at 13:38

Panorama video tutorials (5/5)

Monday, 11 July 2011

Here’s part 5 (of 5, but there’ll be at least one more soon) of my little pan­or­amic pho­to­graphy tutorial series. I’m show­ing two tech­niques how to edit the ver­tical down view, or “nadir”. You mostly need this to remove the tri­pod from your image, or when you have some unwanted lens flare in the image (espe­cially when using the Peleng).

Posted at 13:13