I've noticed that with photography. I've viewed pictures and videos from the late 1800's to the early 1900's and they are sharp and clear to where you can make out every detail and yet in the 60's & 70's we were introduced to Polaroid and Kodak instant cameras where everybody thought they were the hottest thing and yet the pictures came out very grainy and distorted. Talk about going backwards in technology. And then out of nowhere the 35mm camera show up.
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One of the factors in the clarity of image reproduction is the size of the film/negative, also called format. The larger the format the better the reproduction quality. Also the type of film used affects image reproduction. From the mid 1800's to the late 1920's large format, glass plate negatives were common.
That is really interesting, I will have to check out old photos more closely. My mum has a heap that were passed on to her.