Originally posted by clackers I have the Samyang 85mm and it's good.
If you didn't want to give up on AF, the DA70 is cheaper than the FA77 but FF as well.
Personally renouncing AF isn't a problem at all, the more so for portraits.
I switched to Pentax on 1979, from a Nikkormat SLR.
To finance my first second-hand Pentax lenses i also sold a Zorki, with a nice set of russian lenses, that i extensively used in India on 1978, and a chinese copy of the Rolleicord (Seagull) that stayed with me (even on horseback, painfully dangling from my neck!) on a 1977 land trip from Europe to India, through Turkey, Iran, Afghanistan, Pakistan.
I had a cheap light meter... but i started taking pictures at the age of 10, all by myself, in a small city of north Italy, with a Bencini 4,5x6 with no rangefinder and of course no meter!
Time ago i found some of those B/W pics and i was amazed by how good they were... children are smart!
I wrote the previous lines, giving a few hints to where an when it all started, to try to explain my point of view.
It's the first time i do it, after many posts, cause it could be seen as pointless, silly bragging. Well, that's not my intention.
I find this thread about full frame "portrait lenses" extremely interesting.
I already posted my opinion about "portrait lenses". Very concisely: it is not about focal length, it's about rendition.
Portraits can be shot in many ways: from ambient portrait to a very tight one, showing just the face.
We can shoot with a 50/55mm, or even with a 150/180mm.
We can shoot with very sharp lenses, i've seen many wonderful B/W portraits of old people showing the finest details of a weathered face.
Though, as i've tried to explained in my previous post, a lens used to take portraits and a "portrait lens" aren't the same thing.
What makes a "portrait lens" different? Its rendition.
In my opinion, it should not be too sharp, nor too contrasty, render colours in a somewhat muted way, have a pleasant transition between in-focus and OOF, be fast enough to pleasantly blur the background, and have a nice bokeh (i.e. show pleasant circles of confusion in OOF highlights, due to the optical project and number/shape of diaphragm leaves).
Possibly it shouldn't be too big and intimidating. People should not be scared away!
Then there is the halo superimposed to the sharp image, but we're not talking "soft focus" here...
Why did i choose to buy the Samyang 85mm, and i would have been more than happy to go for the 77mm Limited?
Because wide open they meet, more or less, these requirements.
Why my A Star 85mm does not?
Cause it's too sharp. Many people think it is the sharpest film-era lens Pentax ever made, Limited's included (i know nothing about modern D FA* objectives).
The FA Star is different, AFAIK. Never tried one.
As a lover of manual focus vintage lenses, i chose to post about budget constraints, and non orthodox choices, because i see that most of the portraits posted by fellow forum users are posed.
For a posed portrait, or in general when there is time to carefully check composition and focusing, i'd suggest to go MF even with AF lenses.
It will be you who decides where to have the plane of focus, and what is left intentionally blurred.
Telling about my choice was not very much about the Samyang's, was more about the third lens i could buy.
I'm not going too in depth about that, this is not mflenses forum, let's just be general.
Let's just say that my first tests with good vintage lenses on my new K-1 have been very very encouraging.
I've posted a couple of pics, and i will post more, on the appropriate thread (i started it but it seems to attract very few posts).
This thread attracted my attention because portrait photography seems to be the perfect application for vintage glasses (specifically, for fast short tele's).
A few general hints, not just for the OP, also for future reference (the K-1 is a great camera, the firmware - good news! - is routinely updated, and i hope it will continue to sell well):
- use common sense
- take into consideration the many helpful hints given by other users
- Goggle is your friend, find the right keyword and increase your knowledge; look for actual pictures, not online reviews; check the average sale price (not requested prices!)
- don't overlook M42 glasses, for most portraits you'll have plenty of time to fit an adapter ring, and screw-in an M42 lens (go for Pentax or Hama rings, the chinese ones are awful)
Cheers
Paolo