Marco Aries

The Asahi Pentax M are probably my favorite vintage lenses, but one kept eluding me: the 40mm, today’s subject. I had never seen one in the flesh and the couple I saw online were three or four times more expensive than other M lenses, so I basically gave up. Until around a year ago when I stumbled upon two of them; one was in bad shape and overpriced while the other was cheaper, pretty clean and the seller was willing to trade with another lens I had, so we sealed the deal. The lens is made of metal, it weighs around 80g, it is 18 to 22mm long and it has an external diameter of 63mm, with a 49mm front thread. The iris has 5 blades, the aperture is clicked and it goes from f2.8 to f22 with half steps. The focusing ring is rubberized, it turns 90 degrees and the minimum focusing distance is 60cm. The Pentax K mount has a flange distance of 45,46mm. The one complaint I have about this lens is the stupidly narrow focus ring. I mean, it works, but it is pretty silly. As you would expect, it...

A couple of years ago I showed you the MTO 500mm and since then I’ve been even more curious to try a 1000mm, but let me tell you: they are two different beasts. The 500 is reasonably small, light and easy to use, while the Rubinar is big, heavy and hard to handle. The lens is made of metal, it weighs around 1kg 650g, it is 18 to 19,5cm long and it has an external diameter of 13cm, with a 11,5cm front thread. It has a fixed aperture of f10 and no iris. The focusing ring is rubberized, it turns 300 degrees and the minimum focusing distance is 4 meters. It comes with a large sun hood and it has a rotating collar with a tripod mount and soft clicks every 90 degrees. The M42 mount has a flange distance of 45,46mm. While it does lack some sharpness, it still manages to capture a good amount of finer details, plus, catadioptric lenses do not have chromatic aberration. Colors are natural with good contrast but lacking some saturation. Specular highlights have the very distinctive torus shape a...