My first prints from my GH5 are a disaster! Where am I going wrong?

brentbrent wrote:

C Sean wrote:

Here are some of the images used for the book.

Those four images are all full resolution, 20MP files. In your earlier post, you said you exported from LR with some setting to output 10MP files. You should upload here some examples of the actual 10MP files that you sent to the printer to be included in the book.

Sorry for any confusion, like I said in my opening statement I'm experimenting stage with Lightroom. It was my belief that after I converted the GH5's raw files to JPEG, they would be roughly the same size as the GH5 in-camera JPEG aka 10-megapixels. However, you pointed out the JPEGs I had uploaded to Dpreview are 20mb files and not 10mb.

There are a few things I want to point out.

1. The photo books actually come from CEWE which Jessops partnered with.  Also on their FAQ website, CEWE add additional sharpening to the images. This could explain enhance noise in some of the images. However, I need to look again but they didn't say about getting the right resolution before uploading to CEWE program.

2. The prints from the GH4 in camera JPEGs are sharper and on average are the better photos compared to the GH5 converted raw files in term of sharpness and definition. The GH4's in camera JPEG would be approx 8mb.

3. While the photos aren't terrible, actually some are but the likelihood it's my fault. The point is the images on my 4k monitor are acceptable but when it comes to print that they are worst.

4. The books I used for the Goodwood and Africa are the large landscape. So it only crop a small fraction off the bottom and top of the photo.

The conclusion I came up with is CEWE add additional sharpening which explain why the pictures has a lot of noise but there were noise in the original JPEG to begin with. The pictures from the GH4 in camera JPEG are smaller files but they came off better than the 20mb GH5 JPEGs so it look like I will have to downsize the images.

I will go to Jessops next week to see what actually going wrong. However, I had done google searches and there articles saying for printing upload the whole file without downsizing. In the world of compacts and now mobile phones, are they referring to them or the big lens interchangeable cameras?