This has been discussed on the Pentax Forum website: the recent page below has links to older pages about the problem and some advice about it. https://www.pentaxforums.com/forums...pentax-k-30-dark-photos-movies-live-view.html Personally I'm very glad that the K5, K3 and KP don't have this problem because I have a K5. I have purchases only 4 SLR/DSLR bodies in the last 45 years, and even when buying my first one at the age of 17 I was careful not to buy a recent model. All the camera bodies I have purchased (one East German and 3 Pentax) were models that had recently been discontinued. This policy has 2 advantages: price and the increased chance that any problems will by then be well known so that purchase can be avoided. The writer of the letter could perhaps look for a mint-condition K-5 body - I've seen these advertised by reputable dealers for £200-£230. Mine is not for sale and I hope it will provide many more years of reliable service.