| Latest Review Posted | Takumar-A 2x Tele-Converter
Yes, there is some loss of light, when using a TC.
There is a little loss of sharpness.
But, this is a very easy way to "carry-around" a lens with twice the focal length.
And, YES, this TC does work with the DA 17-70 SDM lens,
And, YES, this TC does work with Sigma 50-200 HSM lens.
Camera used was K-50.https://www.pentaxforums.com/gallery/images/49323/large/1_DSCN5755.JPG
Second photo taken with setup, as shown in photo-1, indoors, no flash, straight from Live-Action TV screen https://www.pentaxforums.com/gallery/images/49323/large/1_K50W4416_HSM_50-200_Lens.JPG |
