Opening a sealed lens block : Lens repair

[@SB-LifeOTR]

Thanks helped me fix my Olympus Zuiko 12-60mm, no shop would touch it, and there was some fungus behind the lens.

[@diyextravaganza]

That's excellent news, it is a pity that shops refuse to take jobs like this.

[@sergeydorovskikh]

Thank you for your experience

[@diyextravaganza]

You're welcome my friend, thats for supporting the channel.

[@moto.peregrino]

Obrigado pelo vídeo, me ajudou a tomar coragem e abrir a lente selada da minha câmera que é uma panasonic HC v-100. Consegui abrir e limpar os fungos. Ótimas dicas.

[@diyextravaganza]

Por nada amigo, gracias por seguir en canal !

[@dude157]

Thanks for these videos both informative and interesting. I don't suppose you know how to calibrate the focus on the Nikkor manual Internal focus(IF) lenses? I recently bought the manual nikkor 300mm f4.5 ED-IF but I can only assume it had been taken apart then put back together wrong. Infinity is off by about 1/4 of the throw and I can't get close to the minimum focus distance. I've adjusted some other lenses and helicoids before, but I just can't seem to get to it even after taking the lens groups out.

[@diyextravaganza]

Hi, thanks, focus calibration is always a matter of getting the groups at the right distance. The way I proceed is to check which one is moving and how, and then start testing different positions with lens mounted on camera pointing far away in order to get infinity, with that you're ok. It is also a very tedious task. But hard to give you details without seeing the lens. Cheers.

[@otaño-m4d]

Good trick, thanks🖤🖤

[@diyextravaganza]

Despues de romperme mucho la cabeza, se me ocurrio esto :)

[@lisiscal]

Congratulations on the video. This was the only one I found talking about it. Is the 85mm canon lens glued in the same way? To remove the lens will you need to peel it off and glue it on? Is the glue used silicone?

[@diyextravaganza]

Hello, thanks. I don't know for the Canon 85mm, you'll need to open and take a look. For the glue, I use B7000, as in phones, but restrict yourself to the minimum amount you can use. Best.

[@palcente]

What if the lens group is made of aluminium? I put it on the hot plate and heated up to around 150c, the glass elements rotate, but stll unable to take them out... Any tips?

[@diyextravaganza]

Well, when the block is in metal, that's another story. The only way I've found is machining using a lathe but it requires a lot of patience and the risk of failure is not negligible. The problem is that most of the time, the material is bend over the glass edge and needs removal. Sometimes it is tight fit and heating works. So, my suggestion is to check whether it is just tight fit or if the material is bended over the glass.

[@ambrosioflavio2266]

do i need to worry about the rotational alignment with the back lens when putting it back?

[@diyextravaganza]

Maybe, make a mark for good measure. Best.

[@ervinsow2187]

I need a tutorial for Samsung NX 50-200mm lens. No idea how to remove the sealed element

[@diyextravaganza]

I don't have that lens around, sorry.

[@frxztezfreezyz]

Hi I have a Sony Camera a6100 and it came with a 16-50 f/3.5 5.5 oss lens and I unscrewed the top piece while testing it and dropped the lens block with the lens piece inside and it cracked what is the little glass piece called inside. I keep looking up the model to replace the little glass piece and it won't appear it just shows me the lens itself.

[@diyextravaganza]

Hi, your description is vague, so difficult to tell you the exact answer. However, being able to buy specific lens elements is not something you normally do. The easiest option would be to find the same lens broken and recover the said part on the latter. Best

[@guillaumegellenoncourt]

Thanks for that ! I have an Olympus 50mm/1.8 Auto-S with the front block that has some fungus. Not so well sealed, huh ?

[@diyextravaganza]

You're welcome, hope you manage to repair your lens :)

[@jameseden6676]

Same here. Will give it a go !

[@pablobernal7916]

Hello friends..it is the only way to clean the modular lenses..and be very careful not to scratch the optic..do it many times.

[@diyextravaganza]

Hi, what do you mean by modular lenses? Best

[@kukulkan6936]

Amigo te agradezco de sobremanera todos tus videos sigue así, disculpa podrías apoyarme con el como "microajustar" el enfoque de los lentes, una ves lleve a servicio una Sony y me la dieron y tenía el enfoque mal, yo recuerdo que solo quitaron el lente y le movieron algo y al instante quedó...por eso pregunto si ese ajuste sabrás hacerlo ya que de nuevo tengo ese problema con una canon, gracias por tu atención

[@diyextravaganza]

Hola, gracias a ti. Lo del foco depende del lente y su construcción, así que difícil decirte sin saber de qué lente se trata. Un saludo.

[@kukulkan6936]

@@diyextravaganza si, es verdad, penseque no me verias pero te doy detalles si gustas, yo tengo una t6 y una t3i, y el lente en concreto es el de kit aunque ultimamente he estado sacando fotos con otras camaras que tengo tambien y curiosamente en diafragmas cerrados no enfoca bien los bordes, tomando en cuenta algo normal claro esta, por ejemplo ese lente con diafragma f11 deberia salir "bien" y la verdad es que parece que estuviera en f1.8 .en cuestion de "bokeh" ..espero se me entienda, no supe explicar mejor

[@kukulkan6936]

se que puse varias marcas pero en concreto seria canon t3i con lente de kit... las demas en un futuro si tienen algun sistema parecido lo intentare gracias de antemano por tu tiempo y ayuda

[@diyextravaganza]

@@kukulkan6936 si funciona bien con tu camara original y no con otras, de pronto es problema de la distancia entre la bayoneta y el sensor (o pelicula), que si cambia de así sea medio milimetro, te salen las imagenes borrosas.

[@diyextravaganza]

@@kukulkan6936 como te explique, me pasa lo mismo con un lente M42 que el adaptador esta un pelin largo, y no me da foco bien.