Lens Spotlight: M150 - Jason Doss

Lens Spotlight

smc Pentax-M 150mm f/3.5

No one really needs a 120mm lens. Same goes for 150mm. The field of view is just a wee bit tighter than a 135mm prime, so a 135mm can accomplish close to the same shot with a few steps forward. I'm a prime lens afficianado and so zooming with my feet is what I do to achieve acceptable framing if the lens of the day isn't quite the right choice.  There's never been a time where I was out with a 135mm, or a 100mm lens, and said, "Oh boy, if I only had my 150mm, this shot would be perfect."


However, 150mm is a unique focal length, and therefore the collector bug in me mandated its acquisition. The lens is very similar, but slightly larger than the M135f3.5 lens which I haven't reviewed yet. Both of these lenses have a built-in hood, similar specs, and handle about the same. These M-series lenses are so small already, yet they manage to cram in lens hoods into many that need them.


The lens is 290g (0.64#) and, focused at infinity, 75mm long (2.9 inches) and has 6 aperture blades and 49mm filter threads. The aperture of f/3.5 is about average for lenses of this focal length. The lens bears the usual aperture ring and has a rubberized grip for easy manual focusing. Minimum focus distance is 180cm (5.9 ft) producing 1:10 reproduction ratio (0.10x).

A peaceful and unexpected light coating of snow came to us during the out time for this lens.  The order that these lenses are used are determined randomly so that the same set of lenses don't get used over and over again. Such are the burdens of gear hounds and lens collectors who actually use the stuff they have.  Somehow, this outing only resulted in two photos, so I guess you get a reprieve for this post.  Don't worry, the M150 will come around again in the queue within a few weeks. 


So, here's what I have to show.  Top we see a 2013 Fiat Abarth, a bonafide rally car owned by my wife, covered in enough snow that would have paralyzed it had the snow stuck to the pavement.  The car is fun to drive, but will not go anywhere on even a wee bit of snow.  And a wee bit of snow is what we got here, as seen in photo number two.  The contrast of white on dark leaves appealed to me here, as the shot was converted to a black and white.


Again, click any photo to see larger versions, and comments can be left on this page or under each photo if you are so inclined.


That's all I have for now... See you next time.


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