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Latest Review Posted SMC Pentax-DA* 300mm F4 ED [IF] SDM
I have had a lot of fun with this lens over a number of years. Easy to pack in cabin baggage with my K-3 and other lenses in pre-COVID days when I could fly, good handheld, mostly used for wildlife with the 1.4x DA converter. The lens has been in frequent use since 2014.
Many reviewers have mentioned slow autofocus - I find it OK most of the time but keeping track of fast flitting warblers and birds in flight can be frustrating.
As a long term user, one issue that I don't see in the reviews is the fragility of the electrical contacts on this lens. They comprise thin brass foil tabs that are folded over onto the lens mount surface and are not even bonded to the body
Today I pressed the shutter, only to find yet again that the focus didn't work and that the settings on the LCD were all over the place. I detached the lens and one of the contacts had folded out and away from the body - fortunately I was able to gently push it back into place. Twice before I wasn't as lucky - the tab was broken off and expensive and time consuming repairs were required. I always take my 55-300 lens with me as a backup on longer trips in case this happens. I wouldn't say I'm hard on my gear - I'm just a frequent user. Over the past year or so I have carried a Ricoh GRIII with me and this has minimized the number of lens changes, but I still need to attach or detach the TC or a macro from time to time.
Otherwise I find most of my Pentax gear to be very robust, and I'm not sure why they made an ...



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