Re: FA* 300mm - TC options
Burris, James escribió: Hello all, Can I use the Sigma APO 1.4x with this lens? What about the 1.7x? Any good 2x? Thanks for your help. I may have a line on a 300mm but would like a TC to go with it - especially the 1.7x if it works well. I don't know about the Sigma converters, but when I had this lens (I sold it to a list member a pair of years ago), I sometimes used it with the Pentax AF adapter 1.7x and a Kenko SHQ 2x AF teleconverter. AF worked with both of them, given enough light. Images taken with the Pentax were sharp and contrasty, with little loss of quality. Results were not so good with the Kenko converter. Bokeh was worse (harsher) with both converters. Carlos -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
FA* 300mm - TC options
Hello all, Can I use the Sigma APO 1.4x with this lens? What about the 1.7x? Any good 2x? Thanks for your help. I may have a line on a 300mm but would like a TC to go with it - especially the 1.7x if it works well. Thanks, James Burris -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
FA* 300mm - TC options
James Burris wrote on Thu, 13 Dec 2007 09:58:30 -0800 Hello all, Can I use the Sigma APO 1.4x with this lens? What about the 1.7x? Any good 2x? Which of the two FA* 300s are you referring to, the f4.5 or the f2.8? The Pentax F 1.7x TC will work admirably on both of these lenses. It's especially nice on the f2.8; low light AF can be a bit dicey with the f4.5 The Sigma EX 1.4x TC will fit without may mechanical interference but I've never used it on these lenses so I can't comment on its performance. I suspect that it would not be as good as the Pentax however. IMO there's no such thing as a good 2x TC except possibly for the Pentax A-S and -L versions. I've used both on the f2.8 with decent results. Regards, Jim -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: FA* 300mm - TC options
On Dec 13, 2007, at 12:09 PM, Jim King wrote: ... IMO there's no such thing as a good 2x TC except possibly for the Pentax A-S and -L versions. I've used both on the f2.8 with decent results. Related to but not entirely on track with the original subject ... In my experience, the Pentax-A Rear Converter 2x-S does very well with the A50 Macro, A200, FA77 and FA135 lenses. It works particularly well with the A50 Macro to provide both a longer macro focal length and 1:1 imaging at a greater working distance. I've kept it specifically for this purpose. I found it exaggerated blooming (red fringing) with the DA70 and DA50-200 to an excessive degree, have not tried it with the DA*50-135 as yet. Godfrey -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: FA* 300mm - TC options
The A2X-S exaggerates fringing with the A400/5.6, but I still use it with that lens now and then. It's the only way I can get enough reach for small birds. Paul On Dec 13, 2007, at 4:29 PM, Godfrey DiGiorgi wrote: On Dec 13, 2007, at 12:09 PM, Jim King wrote: ... IMO there's no such thing as a good 2x TC except possibly for the Pentax A-S and -L versions. I've used both on the f2.8 with decent results. Related to but not entirely on track with the original subject ... In my experience, the Pentax-A Rear Converter 2x-S does very well with the A50 Macro, A200, FA77 and FA135 lenses. It works particularly well with the A50 Macro to provide both a longer macro focal length and 1:1 imaging at a greater working distance. I've kept it specifically for this purpose. I found it exaggerated blooming (red fringing) with the DA70 and DA50-200 to an excessive degree, have not tried it with the DA*50-135 as yet. Godfrey -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
