I get this 400mm old prime along with interesting tower flashes that I want to try out. I got a Sunpak Auto Thyristor 522 andd Metz 60 c-1 that are flash with a tower bracket. The lens are not what I am after. I thought it would be another lens that would weight over three pounds. This 400mm is the lightest in all the 300mm and 400mm lens that I have handled. Now that I think of it, it may be too light. Anyway, I tried it out in a lunch break. Handling is not too bad especially in the ease of focusing. Purple fringing can easily be seen unfortunately. My copy comes in a T-mount that is currently comes with an adapter to K mountInitial Test Shots
bokeh is not too bad
quite easy to obtain focus
but easy to get focus errors due tolost of focus trap in K-mount
I wish I can have 1/2 sec more to nail the focus
Initial Impressions & Notes
- This 400mm is the lightest that I have handled. Though long in length, weight is not an issue for hand-holding.
- It comes with a adjustable tripod collar. I have not tried if I can remove the collar for hand-holding
- Bokeh is not too bad
- Easy to handle
- It has a preset ring with C <----> O with letter C for closing aperture down while O refers to opening of the aperture blades to wide open
- I find focusing achievable in f/8.0 in good lighting without the need to switch to 'C' in preset ring. With some previous encounter with M42 tele-lens, that is not the case as I always need to focus in wider apertures as in f/5.6 to f/2.8.
- Purple Fringing is easily seen in the test pictures.
- Lost of focus trap will take some time to get used to
- Stop down metering is required like other K-mount manual lens.
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