Apo Telezenitar 300mm f4.5 vs. Tair 3 300mm f4.5

[convert1]

I have the both lenses since 15 years, but never had enough time to compare it.
From another threads and my own experience I know Tair 3 300mm f4.5 can produce sharp and contrasty picture.

On the other hand Apo telezenitar 300mm f4.5 is well known very rare, I never saw it in Ebay .

To day I have a small time to compare Tair 3 vs. Apo Telezenitar 300mm f4.5.

Here is the size different at infinity
Weight :Tair 1.5 Kg , Apo Telezenitar 0.95 Kg
MFD : Tair 2.2 m , Apo Telezenitar 3m







Tair 3 100 % crop






Apo Telezenitar 100 % crop
Do you think it is true Apo ?

[DR.JUAN]

Thanks for sharing.

The apo zenitar was unknowed to me till now.

Very good lens.

The CA is almost negligible (really apo?).

Strong contrast, more than the tair.

High resolution power.

Both are great lenses, but the apo zenitar has a plus.

[iangreenhalgh1]

I agree with Juan, looks APO to me, if you don't get any CA on such a bright highlight, that suggests APO.

I had no idea this lens existed, looks like a great one indeed.

[convert1]

Thanks Dr.Juan , it is a great lens indeed, pity that this lens not easy to buy, I would say 'not available' at used market.

Thanks ian ! , I had apo telezenitar 135mm f2.8 as well , however the damaged coating in every glass element make it imposible to judge IQ.

That's why I did compare once again with voigtländer apo lenses to confirm my own question, and it is true apo !
It should be mention , it is apple and orange comparison, but at least I can judge the CA.

100% crop Apo lanthar 125mm f2.5


100% crop Apo Lanthar 180mm f4


90% crop Apo Telezenitar 300mm f4.5