Cosina produces 4-3 very interesting manual lenses for the Micro 5/6 system.
The Voigtlander Nokton lens range aperture 1:0.95
Voigtlander Nokton Lenses for Micro 4/3
- Voigtlander nokton 10.5 mm F0.95 ASPHERICAL
- Voigtlander nokton 17.5 mm F0.95 ASPHERICAL
- Voigtlander nokton 25 mm F0.95
- Voigtlander nokton 25 mm F0.95 type II
- Voigtlander Super Nokton 29 mm F0.8 aspherical
- Voigtlander nokton 42.5 mm F0.95
- Voigtlander nokton 60 mm F0.95
All these lenses (except 29/0.8) is characteristic of super aperture 1:0.95 and it’s a huge rarity when completely whole line lenses consists exclusively of such high-aperture solutions. Also, all these lenses (except 29/0.8) have 10 continuously variable aperture blades and a metal housing. In terms of full frame, this ruler provides a convenient set of EGF 21, 35, 50, 58, 85, 120 mm, which is enough for a huge number of photo tasks.
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Interesting question price :)
Something tells me that happiness is in ignorance)
the whole set is a little over $ 7k
Probably, it will be interesting for filming, will it really be justified at the price ...
If a person buys a set of optics for video filming for $ 7, then, as a rule, this is either a very big enthusiast, or he earns it))) And if he earns it, he usually realizes the rationality of the acquisition.
these are expensive lenses made at a very high level, presumably using crystal glasses, having a characteristic pattern and excellent bokeh. I heard that those who tried them, then remained with them about. It is also necessary to take into account the fact that blur is a problem for a 4/3 matrix, but here it will correspond to aperture 1.8 in terms of a full frame, that is, to itself.
It is more correct to use the term “flint” instead of the phrase “crystal glass”.
A feature of both terms is the use of large amounts of lead oxide in this type of optical glass, which gives a high refractive index.
Today, this is a common routine, as all manufacturers of optical glass have long mastered the production of flint glasses.
Moreover, lead glasses are generally a bad option - precisely because of their use, almost all Soviet optics are very yellow. The fact is that lead (II) oxide in glass has a yellow color (it itself is either yellow or orange - depending on the structural type), and its content in some glasses (in my opinion, this is not TF, not STF) reaches 60 masses. %. So the fairy tales about crystal lenses generally look so-so.
For a long time, rare earths have been held in high esteem (Everyone knows about lanthanum and thorium), barium, fluoride glasses.
Soviet optics do not yellow because of glass but because of crap enlightenment, and even not all yellow because crap enlightenment is not everywhere :) Zeiss used the same lead in glasses and doesn’t yellow anything there :)
I know, I saw enough examples where it is definitely not about enlightenment.
that's just a manual one, for example, 50 / 1.9 for 800 dollars - that's another question.
New full-frame "modern" Zeiss Planar 50mm f / 1.4 and then cheaper, and even with automatic diaphragm and EXIF :)
A otus is more expensive) I wonder which one will be closer
These are just excellent glasses; it is not always advisable to buy them, but they will soon begin to appear in annuities. For a project in rent, you can take, raise the quality, and if it is advisable and for some tasks you need to often, then buy.
I wonder how they are at 0.95. Will the photo work for astro. Is it necessary to clamp to 1.4, or even 2, to get sharpness.