Re: M50ii + EF-S 55-250mm STM + Kenko SHQ 1.5x Teleconverter
Alan WF wrote:
Well after some procrasination I finally followed some advice given on previous posts about modifying my lens to work with the Kenko adapter
Great! I hope you get as much a joy out of your extended 55-250 as I do out of mine.
The thing I did different is a did not chop up the mount, instead I bought a EF mount replacement part from fleabay that screwed on perfectly. It it well built and has given me no issues.
That's very interesting. Over in the Adapted Lens forum, Tom Caldwell did a similar replacement to mount the EF-S 55-250 IS STM on a focal reducer for M43. The EF-S extension back towards the sensor interferes with the optics in the focal reducer, just as it does in most extenders. However, he had problems with it being a very tight fit. Can you share the listing on Ebay? Perhaps there are some which are less tight? Or perhaps it's just a different fit between the extender and focal reducer?
Regards,
Alan
Just joining the comments here. I found my Kenko 1.4x TC. It is the "1.4x Teleplus Pro 300", marked separately as "DG". It is just as tight as the other adapters I have tried. Bought maybe 2005-ish.
I could probably force it on - but I would rather try and fix the fundamental issue.
I have sent Jason a PM on the issue.
My need is EF-S to M4/3 where focal reduction is an advantage to put a full aps-c image circle on the 4/3 sensor. There is no reason why I could not also fit a Kenko 1.4x Adapter as well in line.
I have tried several adapters - 2xEF-M4/3, EF-Sony E, Viltrox, and Metabones (now Kenko 1.4x as well). Only one cheap EF-M4/3 that has no guide rails and relies only on springs mounts easily (also has a slightly wobbly fit as a result). Others vary from extremely tight fit to impossibly eye-popping tight "oh my gosh am I ever going to get this off again" tight.