Both exactly the same shade. Open the image in any editing software and use the eyedropper or similar cursor tool.

This is an old one, but still amazes me every time.

Which is darker ? A or B

I have found my mobile phone to be very valuable during this pandemic. If 3 years ago someone had said there would be a need for the NHS and local surgeries to keep everyone updated regularly with medical advice; book vaccination appointments; use track and trace apps; check into venues; and maintain an up to date vaccine record, I would have laughed at the possibility that it could be done.

Well it has been done, and very effectively. If you dont want to use a mobile phone for your health (but just for photography !) then phone the landline number they provide or just go and get the test at a chemist.

My experience tells me those two things often go hand in hand.

Back/Front focus issues have been with us since AF first appeared in the 1980's. Only with higher MP cameras and the ability to pixel-peep do we notice them as much.

They can be caused by the camera (AF sensor registration distance) or the lens , or a combination of both.

I have done extensive testing on My K1. It suffers with a general BF. I need on average +7 for accurate focus, but on some lenses it requires +5 and on a couple +10 is only just enough. I have also discovered that making the camera focus from infinity or closest-focus distance to the subject can make a difference.

What can also make a difference is the light under which you take your picture. I learned a while ago that trying to calibrate a lens for AF under artificial light can lead to odd results. If you really noticed the issue when photographing under candle light, that may itself be a contributor to the problem.

Beautiful light this time of the year.

Very tranquil scenes. The first could I think be improved with a little selective curves editing. Let me know if you would like me to post what I mean.

2 and 4 for me. Great stuff.

Another lovely set.....

now how did you get hold of that lens so quickly ?