Recent content by MartinCornwall

Little Fistral , summer time....

Ghost children

I would say to start off with swapping the blue and red channels first as this is the most important part to get your initial image looking right before you do any further tweaks. The two photo's below show the original file and one with the blue and red and red and blue channel swapped, with...

No 3. FIRE.....

No.2 Physiogram

Like this Wayne :) Double Parhelia or Sun Dogs. @ C. Hand I can't see the effect on here but sometimes lines occur when re sizing Jpegs (the extra compression can't handle all the different tones)

Entry No. 1 Iridium82 This is a 5shot long exposure stacked in StarStax which strips the exif so the single shot below will hopefully show the exif (ps can't turn bold off?)

Do you mean like this Don?

I would agree with Scott, it looks like dust which could be inside the front element, whilst it doesn't show in normal photography it will show up in long exposures at night with bright light sources as in your photo. Here are two examples of when I had a dust inside front element, showing the...

I just tried the experiment for you @mikew . Sigma 10-20mm DX lens on a D750. They are correct, although I used an old Jessops x2 converter. 1st pic, 10mm no converter. 2nd pic 10mm with 2x converter Ignore the subject as it is just a quick test out of a window, but there is clearly no...

As Scott Murray says. Learn to walk before you run. But here is some advice. There are no set parameters for night photography, there are just too many variables (light pollution, phase of the moon, location, level of darkness, iso capability of the camera and so on and on). I found with the...

Hi all, I am having trouble finding out how to add lens correction profiles to Lightroom 6 (perpetual). So far I have downloaded the adobe lens profile downloader 1.0.1 and updated it. The D750 isn't even listed in the camera type list? I found a profile for the D700 24-120mm f/4 II which...

Long exposure in my back garden on Sat night :-)

Utilize ambient lighting and even the moon to light up your foreground interest. The following shot is a 1hour long stack under a quarter moon with no additional extra long exposure for the foreground. All shots 15secs ISO400 f2.8.

Here is a 'proper' UFO above my house ;)