Is my Canon 35/1.8 too young to die?

[existrandom]

hi folks,

i've spent happy time w/ my Canon 35/1.8 LTM, but it seems that this is the end of a beautiful but brief relationship :bang:

after a trip to Bangladesh i found that there is seperation in the glass, which makes the pictures flarish sometimes, but it is still very usable i decided

the other day when i finished shooting i discovered that the black barrel construction is rocking, playing loose inside the outerior (focus) barrel. the whole structure of glass element is rocking along with the tube

the lens has never been knocked or abused in anyway

is this fixable? i wonder

any advice, please?

thanks for viewing!

lee

 

[jlw]

I don't have a 35/1.8, but on many other Canon lenses, the optical unit and focusing mount are separate modules. The optical unit is retained in the focusing mount via a slotted ring around the rear element.

It's not uncommon for this ring to loosen a bit as a result of vibration (e.g. from traveling) and then the optics can rock in the focusing mount.

To fix, simply tighten the slotted ring. Be sure to use an optical spanner with the correct size tips, to reduce the risk of having the spanner slip and scratch the rear element!

As I said, I don't know if this applies to the 35/1.8, but it's certainly worth checking before giving up on your faithful optical friend.

 

[jdos2]

The late Mr. Grimes' family business would recement it for you, if you'd like.

 

[taffer]

Sorry to hear this Lee 🙁 but I was going to give the same advice as Jlw, the rear retaining ring could be loose. There was a similar thread on PN a while ago with this same problem happening in a (brand new!) Nokton 40/1.4.

Perhaps our lens expert Brian could give you some more advice about this.

Good luck !!! 🙂

 

[saltyfli]

Canon 35mm 1.8 repair

Canon 35mm 1.8 repair

I have had the same lens repaired at Focal Point INC. They have serviced 6 Canon LTM lenses for me and I have been extreamly happy with they work. They are specialists for these older lenses. They can be reached at # 303-665-6640. I feel it would be worth trying to get this lense repaired, or at least get an estimate. Saltyfli

 

[back alley]

lee, i thought you sold that lens to oscar!

or am i confused?

joe

 

[existrandom]

hi all,

thanks for the advice, could not locate which is the slotted ring mentioned though
perhaps i should give it to an experienced person to have a look first


joe,

i keep the lens in the end

best,

lee

 

[existrandom]

hi all,

just got it done myself, the barrel no longer rock or play
... but then i noticed the seperation in the inner elements has gone worse

regards,

lee

 

[taffer]

Good to know that one thing is solved Lee. As for separation, I've read of successful DIY repairs using something called UV curing optical glue or something similar. Some places take care of it but the bad part is that as far as I know, it's not cheap.

How bad is the separation now, can you get rid of it by stopping down a couple stops or is it getting more serious ?

 

[existrandom]

taffer,

the speration, unfortunately, locates in the central part of the element where stopping down won't help much