Pretty sure that's the Bogen extension arm. They make a long and short one. Don't recall whether the 6" extension arm (w/ double-ended spigot) is the long or short, though (probably short).
i bought that 042 extension arm, and it wont really work to join two superclamps together because of the angle on the hex bolt end (it doesnt always line up the two superclamps at the right angles; the spigot end obviously rotates 360 degrees). i will, however, use it to get a bit of extension (out, horizontally) when i clamp to a vertical i-beam, which is what i bought it for - thx for the part number...
Alternative extension pole:
Bogen / Manfrotto 3109 Extension Pole (35" - ~91")
Mfr# 3109 | B&H# BO3109
Looks like it has a 5/8"-27 female thread on the bottom, according to the specs on B&H. Has a combination 5/8" stud and 3/8"-16 male thread tip on the top. Much less expensive than the custom APIC extension (by about half!). Wish I could fit a 3' pole on my motorcycle more easily, I'd save myself a few bucks.
evidently, the 3019 is discontinued. i just bought the 099b, which is the replacement model for the 3109 (
b+h link). the thing is sweet!! it is sturdy, TALL, and it works great with my superclamp: i use one of those 013 spigots - one end drops into the bottom female slot on the pole (which has its own tension knob), and the other end of the spigot drops into the quick-release hole of the superclamp, allowing the pole to be rotated the full 360 degrees. my only gripe with this extension pole is that it is not air-cushioned (the thing goes high up, and it sure does come down in a hurry
).
my FAVORITE piece of clamping gear is the quick-action superclamp (
b+h link). it is identical to the regular superclamp, except for the new quick-action mechanism (which is really simple and cool). the thing LOCKS and RELEASES in a jiffy, yet it is just as sturdy and secure as the standard superclamp. the tighten knob is smaller, too, which is a bonus when using the thing in a tight spot, which i sometimes have to do...
so, my clamp/extension quiver looks like this...
- manfrotto #635 quick release superclamp
- manfrotto heavy-duty flex arm
- manfrotto #099b extension pole
- manfrotto #042 extension arm
- manfrotto #013 spigot
- 1/4" > 3/8" male adapter
- 3/8" > 5/8" male adapter
- manfrotto #061 and #061ra joining studs
- manfrotto #035 standard superclamp
- windtech msa1 clamp
i dont think that there is anything else i need (other than a good, solid, sturdy stand, which i do also have). the heavy-duty flex arm is the work horse, and does almost anything i need it to do. the only place it lacks is straight-on horizontal extension, which is the purpose of carrying the 042 arm. finally, the 099b pole is used for the bigger extension jobs...
if i had my druthers, i would use my superclamp, and above accessories, 100% of the time; a couple times a year (usually outdoors) i need to use a stand, but in most of the clubs/bars/venues where i record, a clamp is preferable. in fact, the biggest problem i encounter when recording is the footprint of the stand; getting the stand legs off of the floor (by eliminating the stand), and clamping to a table, drink rail, ceiling, i-beam, etc. is really the way to go. i used to think a superclamp was overkill, but i kind of need to use one, considering that i run a large shockmount and the c422; i feel the standard c-type clamp is not sturdy enough. in contrast, my gear is well below the weight limits on the superclamp, pole, and arms...
as far as the spigots go, i have had an old 3/8" by 1/4" one that i have used with my flexarm for years; this new one (#013) is a bit beefier, and is designed to fit in the #042 arm with which it came. i use a 1/4" > 3/8" male adapter so the spigot effectively has 2x 3/8" male ends; i need to do this because the flex arm tops off with the 3/8" female opening, and to use either of the shockmounts i own, i need to use a 3/8" male end, so i can use the 3/8" > 5/8" male adapter, since the mounts have the standard 5/8" female opening...
for joining the two superclamps together, i picked up the connector studs (#061 and #061RA). to be honest, i don't know if i would bother with this otherwise, but rather than get rid of the 035 clamp when i bought the new quick-action one, i bought the two connector bolts - i have yet to use them, but i am ready if the occasion arises you dont need these bolts at all - since i have an extra spigot, i use that, and i am not limited to the angles on the studs, since the spigots can rotate 360 degrees...
finally, i have a windtech msa1 clamp for the rare instance when i need to clamp onto someone else's stand. the extension bar on that thing (msa1) is sturdy enough for my gear, and i think the clamp mechanism itself is superior (read "more secure") to what is offered by a standard c-type clamp (which isnt sturdy/beefy enough for my needs)...
now if i could only find like an eighteen inch offset arm that will clamp to the pole and accept the superclamp spigot...