Judy and I have done a fair amount of travel, and I’ve documented it primarily with still photography. When we first started traveling, I tried using a small, folding camera that I could put in my pocket when not in use. I thought that having a camera around my neck would mark me as a tourist – but I probably stood out anyway
.
But small cameras have small sensors and small sensors produce images with noise in the image.
So, I kept upgrading my camera until I got to an APS-C camera that I use today.
But I still have the dream of a small camera that I can put into my pocket when not in use, and that led me to the iPhone.
When I first started using an iPhone, the images were not that good – but they’ve gotten better over time – except for telephoto pictures, which were not so great. The pictures produced were not sharp and crisp if you tried to zoom in a fair amount.
The iPhone 15 Pro Max has some photo enhancements that I felt might improve on that. The Pro and Pro Max have a telephoto lens. The Pro can do a 3X optical zoom and the Pro Max can do a 5X optical zoom.
I’ve had the 15 Pro Max for a short while and have done some testing with it. That’s what I’ll cover here.
The Pro Max has three cameras: a wide angle camera, a standard camera, and a telephoto camera
First, the standard camera can produce a 12- or 24-megapixel image. For better quality you should select the 24-megapixel option. But beyond that, you can set the ProRaw option, and it will produce a .DNG file with 48 megapixel resolution. [Note; DNG stands for “Digital Negative Format”. But DNF is used in sports for “Did Not Finish” so I think they jumped the “F” to “G”.] I recommend this option. My testing showed that the 48-megapixel DNG file produced very good images which could be manipulated well in post processing (PhotoShop).
The ProRaw selection will show at the top of the camera when you are using the camera. But the default is that you will have to select it for each picture – it will reset between pictures. I’d recommend you set the “Pro Default” to “ProRaw Max”. This way the ProRaw option will stay on until you turn it off. Next time you use the camera, it will return to whatever you had it set on last time you used it.
If you do not do post processing, you can download the DNG image as a JPEG from iCloud. The JPEG will be produced from that high resolution DNG.
The standard camera is very acceptable for travel photography, especially if you use the ProRaw option.
But what about the telephoto camera? The telephoto camera will only produce a 12 megapixel image – but it will produce a DNG image, or a JPEG image. In the testing I’ve done with the telephoto lens, I don’t see a lot of difference between the DNG or the JPEG image. The DNG might provide some advantage in post processing.
The telephoto images from the Pro Max are significantly better than telephoto images from earlier generations of the iPhone.
Here are some pictures with the telephoto camera. First, a photo at 5X optical zoom with the subject about 45 feet away (I measured the distance).

Overall, a good image. But let's zoom in a bit further and see what happens. Here I've digitally zoomed to get a close up of the leaves.

The image is not as good, or sharp, as would be produced by a standard camera with a telephoto lens, but it's not too bad. A lot better than previous generations of iPhone telephoto images.
Apple says that this last image is equivalent to about a 600mm lens on a 35mm camera. With digital zoom, the software attempts to figure out what the image is, and if it can, it can do some things to improve the image, especially the sharpness of edges in the image. I suspect leaves are easy to identify. Pictures of other things may not be as sharp.
Overall, the telephoto images are not too bad. Maybe not magazine quality, but acceptable for Internet blog uses.
[Added note: The iPhone 15 Pro Max is the same width as the 15 Pro, but is 13mm (about a half inch) longer, so it fits into my pocket fine. The Pro Max comes with 256GB of storage, minimum, while the Pro comes with 128GB of storage, minimum (you can buy either with a lot more storage but you don't need it if you use iCloud). If you price a minimum Pro Max against a 256GB Pro, the cost is not that much more.]