geniousc wrote:
It's not important as long as they are in mid lock position while you are tilting.
I'm not sure what you mean by "mid-lock", but I'll repeat that these are not tension adjustments. I think a lot of people think they work like the locking screws on ball heads, but they don't. The instructions make it clear: lock or unlock, nothing in between. Unlocked may not require completely unscrewing to the end of the travel, but I wouldn't bet a $2000 lens on it.
pixelpix wrote:
Having had my lens come out of the bag frozen, I would suggest.....
...
3: Tilt switch locked to prevent movement.
4: Tilt & shift locking knobs loose but not fully open.
Where do you get that from? That tilt "switch" strikes me as a part not designed to take any force, but as an interlock to ensure the lens really has no tilt, with the locking screw taking the force. That's why there's a switch for tilt but not for shift: the image isn't really affected if the lens is left slightly off centre for shift, but can be ruined by a small amount of tilt.
Having not had the lens freeze on me, I'll think I'll continue to transport the lens locked. I probably haven't transported it as far as some here, but its one big trip so far (about 1500km round) did include about 40km of very rough gravel road.
Canon Rumors wrote:
80% of the TS-E 24mm f/3.5L II lenses that I own, have had this problem. A few out of warranty. Each repair has required a shift unit replacement and runs about $700. It's the most frustrating lens in the rental lineup.
It might be worth your while, and I'm sure it would be of interest to those here, if next time this happened you found a local repairer to dismantle the lens, posted photos of the damage, and then got a machine shop to install something more robust. I imagine Canon were restricted in their design by wanting to clear the housings of all kinds of legacy EOS bodies, whereas for a rental business you could declare some of your fleet as for 5 series and 1 series only.
wib3 wrote:
After you use this 24mm TS-E II, how would you store it with lock knobs in what position ?
Thanks
Quite a variation in answers.
I store mine in a fairly tight fitting pocket in my bag so it can't move around. I leave the locking knobs loose, and the tilt and shift settings at neutral (zero). This is a pretty ruggedly built lens, so personally I don't think it matters where the tilt and shift settings are at when it's stored, but at neutral there are no sliding surfaces exposed. I'm more concerned about keeping it away from dust as I'm not sure how well sealed the metal to metal sliding surfaces are. It may be great, but I'm also concerned about rain. Perhaps I shouldn't be?
Because the hood is so large, it's stored in a separate compartment.
melcat wrote:
I'm not sure what you mean by "mid-lock", but I'll repeat that these are not tension adjustments. I think a lot of people think they work like the locking screws on ball heads, but they don't. The instructions make it clear: lock or unlock, nothing in between. Unlocked may not require completely unscrewing to the end of the travel, but I wouldn't bet a $2000 lens on it.
Where do you get that from? That tilt "switch" strikes me as a part not designed to take any force, but as an interlock to ensure the lens really has no tilt, with the locking screw taking the force. That's why there's a switch for tilt but not for shift: the image isn't really affected if the lens is left slightly off centre for shift, but can be ruined by a small amount of tilt....Show more →
It's a "suggestion" (as asked for) based on my own experiences and the comments here.... I don't expect the lens to take any force in my bag whatsoever, so given the circumstances I don't want the knobs locked and would like to keep the tilt still just in case.
I don't believe there to be a definitive answer to the question to be honest, but I have experienced 3 absolute lockups and a couple of stiffies... all from a variety of circumstances and all seemingly for no apparent reason, so I will make my "suggestion" based on that. Your mileage may differ and I am happy for you to do as you please.
I've had issued with my tilt knob freezing up on a couple of occasions. It's never happened with my shift knob. I rarely use the tilt so it's been more of an annoyance than anything. The first time it happened to me I was on a shoot and I was trying to hurry up to set up a shot I needed to use swing on, and the knob wouldn't budge. I didn't have time to monkey around I just used a pair of pliers (hooray for multitools!) to finally get the knob to turn. Other than cosmetic damage to the knob it didn't seem to do any harm. The last couple of times I've used the tilt it's been fine.
I don't think I could physically let myself spray WD40 on a 2,000 dollar lens........ That said it's a bummer to hear about this issue since this is a lens I am hoping to get someday in the not to distant future.
I spent some time talking to the Canon lens technician this morning. He assures me that the tension knobs cannot "self wind" as the lens shifts, as the knob simply controls a compression plate. Even moving the shift or tilt while "some" pressure is being applied, should not lead to any additional pressure or locking in any way. (it will however lead to unnessecary wear and should be avoided)
I just had the shift of my 24mm mkII lock in mid use. One moment it was fine, the next it was tight and the next it was locked almost like a solid block.
