If you use heavy duty light stands and grip hardware that have Junior receptors or you're just a grip geek then this will be of interest to you.
Recently I've been upgrading and tweaking the grip hardware and light stands I use and came across a slight difference between Avenger and Matthews junior pins and receptors. I can't say for sure if this is a universal difference in all the components and I have no idea how these two brands compare to receptors and pins used by Altman and others but this is what I found.
Below is an Avenger E200 and a Matthews 429029 Junior to Baby adapter. They're very similar but if you look carefully you can see that the Junior pins are of different heights. The Avenger junior insert measures 115mm and the Matthews measures 106mm.The junior receptor is also deeper on the Avenger. Each receptor has a 'stop'. The Avenger has its stop 116 mm from the top of the receptor and the Matthews has it 107mm from the top.
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The combination of the longer pin on the adapter and the deeper shaft in the receptor means that the Avenger pin seats fully and flush in an Avenger receptor but won't fully seat in the Matthews receptor. On the other hand, the Matthews pin works fine in both receptors.
You can see what I'm describing in the images below.
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Despite the imperfect fit, I don't think that it compromises strength or stability in any way, but if you're a bit anal about the way components fit (like me), then it's something to think about when buying Junior to Baby adapters.
NOTE: I realize the baby pins are different as well but I haven't found an instance where that has made any difference in the fit of any other component that can receive a baby pin.







