Any image degradation it foes cause isn’t visible to the naked eye. Thus I would say there is no degradation. Of course we’re talking about a $450 TC on a $2000 lens.
Paul > On Aug 16, 2018, at 1:21 AM, Subash Jeyan <[email protected]> wrote: > > thanks Paul. it's good to know it doesn't cause too much of an image > degradation.... > >> On Thu, Aug 16, 2018 at 10:41 AM Paul Sorenson <[email protected]> wrote: >> >> I use the Pentax DA 1.4 AW TC with the the 55-300 and it's a fine >> combination. >> >> -p >> >> >>> On 8/15/2018 10:02 PM, Subash Jeyan wrote: >>> i'm going on a winter trek to the himalayas in november. planning to do >>> some birding also along the way and since the sigma 150-500, at almost >>> 2kg, is too heavy for that i was looking at alternatives. >>> >>> i have a tamron 1.4x pz-af (af works with sdm too) and i was wondering >>> if i could use that with the da 55-300. i did some googling and the >>> results surprised me. it looks, in spite of all the conventional wisdom >>> that TCs can only be used with a sharp prime lens, people have got good >>> results. see the (old) thread here: >>> https://www.dpreview.com/forums/thread/3680410 >>> >>> have any of you used 55-300, or any other zoom, with a tc? if so i'll be >>> interested in how that went... >>> >>> thanks, subash >>> >> >> -- >> Paul Sorenson >> Studio1941 >> >> Sooner or later "different" scares people. >> >> >> -- >> PDML Pentax-Discuss Mail List >> [email protected] >> 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 > [email protected] > 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 [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
