Yes, you do need an adapter. Get the Pentax one from the Pentax website. Don't waste your time elsewhere.
The 35mm f2.0 is bigger and heavier than the f3.5 version, especially the first edition one with its 62mm front filter ring. Later versions used 49mm filter rings instead. The f2.0 version is not as sharp but it is a lot faster and more expensive. f2s typically go for $120-150 minimum on Ebay while the f3.5 would go for $40-50.
If you have the money, get the f2 version, I've got a few very nice shots in low lighting that the f3.5 would have been incapable of.
To be honest, they're all great lenses like most Takumars are and at $50-100 per lens, you can afford to collect them all.
|