- Thread Starter
- #61
I would go for CaF lenses if it would be a parameter declared by the manufacturer.Maybe the manufacturers have reasons why they build a lens exactly like that. There are some newly released vintage lenses (or similar) on the market, I'll exclude them here.
My first question would be what is "no modern materials"?
For me, the most important thing about a lens is its imaging performance. Without them, everything behind them becomes less important. There are enough lenses on the market that reduce the resolution of the camera, even well below 20MP.
Perhaps I should also mention that it wasn't even 10 years ago when the big camera manufacturers didn't have a lens in their range that transmitted the resolution of their 50MP cameras, especially not at full aperture.
Points such as glass lenses, autofocus, image stabilization (in the lens) and also weather protection affect the imaging performance of a lens and must be specified and included during development.
Again, I can take the Zeiss Otus as an example. Everything that could affect the imaging performance was really left out and the highest quality glass lenses and materials were used.
How many lenses are there that can match the imaging performance of the Zeiss Otus lenses at FF and wide aperture, especially the 50mm?
Every manufacturer would do well to omit all unnecessary functionality that is not absolutely necessary. The service life and precision are also affected by functionality such as autofocus, image stabilization (in the lens) and weather protection.
Personally, I also prefer stabilization by the camera sensor, as it makes more sense and is much more effective, and it works with every lens on the market.
The most important point comes right at the end.
As with most development-intensive products, the price is made up of development costs, production costs and quantities. In the case of small quantities, the costs must be shared among them.
It's no secret that the first 90% of a development is easier and cheaper, the next 5-7% is at least twice as expensive. At the last 2-3%, the development costs explode 5-10 times or more, or the development has to be considered a flop/total loss.
And that's what bothers me the most about your statement. A manufacturer learns the most about problems and weak points from a product that is so well developed and pushed to the extreme.
Exactly this experience flows into the next generation and makes the next affordable lenses better.
Calcium fluoride - Wikipedia
en.wikipedia.org
Its lighter than glass, has very natural optical characteristics, and the tech for growing CaF crystals and polishing them into lenses is around for about 25+ years. Yes, Zeiss and I am long time fan of their work.
I found the remark about lenses that reduce the resolution of the camera quite informative, because I have been following few professionals and their work - they used fullframe Canons and Nikons which are considered to be golden standard. I use Olympus with either M.Zuiko or Lumix lenses - Preferably the Leica branded ones.
I have been commended by few photographers that my photos are very sharp and detailed. Not for the system or sensor, but in general. I attributed that to Anti-Aliasing filter which is not present on my sensor.
Thanks to you I realized that higher pixel density requires better lenses to get the best results. That brings me to conclusion that PRO and premium lenses for those systems most likely have better resolution (or lens to sensor transport). OFC there are more factors because cropped formats typically use lenses with shorter focal distance which means wider DOF, all that paired with In-Body-Stabilization.
Checked Zeiss Otus 55mm 1.4 photos. I really like them. Some lenses make perfect image of the subject, while the background gets distorted.
This was taken by Lumix GX 35-100mm F2.8 at maximum focal lenght and 2.8. M43 lenses typically have best resolution at 1 stop down. With this lens we are talking about price tag about 1100 dollars, might have changed due the inflation.
Both lenses have aspherical elements which is the cause of the background distortion, both are apochromatic. Also I should refrain to use fake vignette efect so often, but no blur effect was used in post.
My opinion is that smaller sensors with higher pixel density helped to pave the way for 50+Mpix sensors on FF systems, but still its cheaper to mass produce lenses and sensors of smaller size. Getting to full manual glass lenses isnt Zeiss Otus territorry anyway.