Rainbow over Gourdon

© Sonny☼Funny, on June 14, said:

YS!!!!!!!!!!!!!!

GDavidson, on June 14, said:

Thank you Miraxx and © Sonny☼Funny!

I would like to catch a rainbow like it again in the countryside!

All the best, Graeme

Shan Khan, on August 17, said:

sucha short angle. never seen it before. good job.

ION BEZERGHEANU / …, on August 28, said:

Photoshop ! ;)

Bits-n-Pieces, on August 28, said:

pretty sad how when anyone posts a great photo, others have to scream 'Photoshop' because that's the only way they could get a great photo.

ION BEZERGHEANU / …, on August 28, said:

To let the author to say ...

CAB1, on August 28, said:

Photoshop ! ;)

I have seen many photoshop images displayed on Panoramio, but I am certain this is not one of them.

ION BEZERGHEANU / …, on August 28, said:

" Arc of a circle " is perfect...suspect. My opinion ... If wrong, i am sorry... .. Anyway the idea is interesting .. ....And then I said: to let the author to say ...

CAB1, on August 28, said:

ION BEZERGHEANU / DIGITART if you look back through the comments you will find that the photographer explains the use of a fish eye lens

ION BEZERGHEANU / …, on August 28, said:

CAB1, if the photographer used a fisheye lens, THE WHOLE ISSUE must be round! That, any professional knows! So...?

GDavidson, on August 28, said:

Thank you Shan Khan, Bits-n-Pieces and CAB1!

ION BEZERGHEANU / DIGITART - there's no Photoshop trickery but I'm flattered that someone thinks I would be so skilled with Photoshop :o) The image is as taken, apart from level adjustment and cloning out a water droplet on the lens affecting the sky.

CAB1 is correct to point out it was taken with a 10.5mm fisheye lens which is why the horizon is curved and the whole rainbow fitted in the shot. The 10.5mm gives nearly a 180 degrees field of view, more than enough to take in a typical rainbow in its entirety.

I have a few other similar shots of the same event but they were spoiled by further water drops on the lens which is hard to avoid with a fisheye.

All the best, Graeme

ION BEZERGHEANU / …, on August 28, said:

Mr. Davidson, to see a photo made with fisheye lens, please clik on: http://www.panoramio.com/photo/26185519 The lens F = 10.5 it is not necesary fish eyes lens. NOTE: This photo is not made by me. I used to be clarifying what is fish eyes lens! Sincerely, and ...learn more! PS: in your photo..."the horizon is curved"...????? Sorry....

GDavidson, on August 28, said:

I do understand the difference between fisheye and rectilinear lenses with short focal lengths. The Nikon 10.5mm used in this shot is a fisheye lens as it does show extreme circular geometric distortion. However, since it is used on a DX (crop) sensor, it effectively takes a reduced crop out of the image circle.

Used on a full frame (35mm) camera and with the built in lens hood sawn off (!) it does give an image like the one you have kindly provided as an example. I have a photo of the sky taken with the same lens at http://www.panoramio.com/photo/12752091 which gives a better idea of how the image gets cropped on DX with this lens.

I do have a 12-24mm rectilinear lens for use on full frame D3/D3X cameras - I wish I had those instead of the 10.5mm/D200 used at the time of this photo. I would have preferred it if the sea horizon had been straight (linear) in this shot.

All the best, Graeme

ION BEZERGHEANU / …, on August 28, said:

OK Graeme ! and... gentle light! All the best, DIGITART

GDavidson, on August 28, said:

Thanks DIGITART - much appreciated.

All the best, Graeme