Howerflies on sunflower, testing DFA100macro with a 1.7x AF converter (10 photos)

[Douglas_of_Sweden]

To get a bit more reach, while dreaming of a 180-200mm macro, I've tried out the SMC Pentax-DFA 100mm f2.8 macro with a Soligor 1.7x converter. The converter has screwdrive connection but no SDM. Have tried it out with severall lenses, for example the DFA100 macro and the DA55-300mm, and autofocus performance is quite good. I have difficulties to see any quality loss due to the converter on macro shots, but it is more noticeable when shooting in the 300mm range. Here is a serie with two howerflies on a sunflower.


#1


#2 Getting company.


#3 Short touchdown.


#4 Up we go again.


#5


#6 Closer at new angle.


#7


#8


#9 Even closer. Hairy ass!


#10

I think I can honestly recommend this converter for screwdrive lenses. Optically it is probably not as good as my Pentax-A converter, but the AF works. Lack of SDM connection doesn't matter since SDM doesn't appear to work on converters >1.5x. Being sold as Soligor, the same construction is probably also sold under different names.

[Douglas_of_Sweden]

Bump! Anyone else tested this converter?
We have been so busy worrying about SMD capable converters (or their absence) that we forgot that their are decent working screw drive AF converters.

[Mike.P®]

Originally Posted by Douglas_of_Sweden

Bump! Anyone else tested this converter?

Not that converter but I have used the Pentax 1.7x TC along with my Adaptall 2 90mm f2.8 macro lens.