iFixit - Answers With Device "Camera Lens"

Sigma 24-70mm F2.8 EX DG Macro: Donde comprar y reparar

Tue, 28 Feb 2023 20:36:37 -0700

He perdido la pestaña del enfoque que está justo debajo de las gomas donde comprar y el enfoque cuando hago zoon pierde el enfoque como equilibrar donde puedo mandarlo gracias

⟐ Answered febrero 28, 2023 at 20:36 GMT-7

Sigma 18-200mm F3.5-6.3 DC OS HSM: Que tipo de cepillo utiliza

Sat, 02 Aug 2025 12:37:56 -0700

Quisiera saber que tipo de cepillo utiliza para poder cambiarlo, el que tengo esta muy doblado y no realiza muy bien el.suto enfoque

Canon L Lens 17-40mm: Se ha quedado bloqueado el zoom.

Thu, 31 Jul 2025 02:23:03 -0700

Buenos días.

De un día al otro, se ha quedado el zoom bloqueado, lo estuve usando sin problemas hace una semana, sin notar nada raro.

Pueden ayudarme o mejor llevarlo a un S.T.

Saludos

sigma 35-135mm AF mount: Rotura en boton fijacion

Sun, 27 Apr 2025 14:08:20 -0700

Hola. Se me cayó el objetivo y se rompió el botón de fijación para que no se abra al trasportar y gira pero va un poco suelto y aveces me da error de conexión con la cámara.

No se como poder a ajustar el objetivo.

Muchas gracias

Camera Lens: como dar mantenimiento a un lente efs 55-250 de canon

Fri, 31 Mar 2023 18:29:20 -0700

guía para dar mantenimiento a es tipo de lente. para desarmar completamente

Sigma 24-70mm F2.8 EX DG Macro: Donde consigo el mecanismo de zoom?

Mon, 20 Sep 2021 09:37:58 -0700

Necesito el mecanismo de zoom de sigma 2.8 el estándar

para cambiarlo ya que se puso muy duro ..

Sigma 24-70mm F2.8 EX DG Macro: donde consigo los pernos que sujetan el mecanismo de zoom?

Tue, 11 May 2021 14:42:07 -0700

Desarme un lente sigma 24-70 f2.8 montura canon para cambiarle el flex del motor de enfoque, y en el intento de arreglarlo arruine los pernos de plastico que estan en el chasis interno del sistema de zoom. No se si ese es el nombre correcto por que no encuentro donde poder comprarlos.

Camera Lens: How do you clean a DSLR lens

Tue, 26 Feb 2019 09:54:38 -0700

how would you clean a digital slr lens

that has fungus in it?

i love the part you have on taking a banana apart.

⟐ Answered febrero 26, 2019 at 9:54 GMT-7

Nikon Lens: AF-P 18-55 lens autofocus issue

Thu, 21 Nov 2024 02:25:54 -0700

The lens suddenly stopped auto focusing. What may be the issue ? The camera is autofocusing with other lens but not this one. I have tried to clean it and re attach it but the problem persists.

⟐ Edited noviembre 21, 2024 at 2:25 GMT-7

Canon EF 28-135 f4.0 IS USM: Canon 28-135 f/4.0 IS USM Lens resist on turning

Fri, 25 Dec 2020 02:41:04 -0700

Hey guys

i totally no idea why does my lens resist on twisting whenever i zoom in or zoom out, i does require a certain amount of force just to twist the barrel of the lens.

how to fix this?

⟐ Answered diciembre 25, 2020 at 2:41 GMT-7

Canon L Lens 17-40mm: How do you disassemble and clean this lens?

Sun, 22 Jan 2017 13:55:35 -0700

Just need a thorough cleaning guide?

⟐ Answer accepted enero 22, 2017 at 13:55 GMT-7

Canon EFS 18-55 IS Kit lens: Kit lens autofocus not focusing properly

Sat, 03 Jan 2026 17:44:49 -0700

Good afternoon everyone,

Today i present my trusty old 18-55 kit lens (F3.5-5.6) which has been gradually failing. I was teaching someone a bit about cameras and were trying to take photos and it just stopped. When holding the shutter button down half way, the lens focus ring barely moves if at all. This either requires me to manually focus my shots now or use my other non-IS lens (my 75-300 EF).

I use a 450D ancient camera and i have verified the aforementioned zoom lens works with AF perfectly, however not the kit lens.

I would assume my AF motor is toast however does anyone have any suggestions for fixing this apart from tearing it down (I'm going into this blind as there are no guides on ifixit for this seemingly common place lens).

⟐ Answered enero 03, 2026 at 17:44 GMT-7

Canon EF 28-135 f4.0 IS USM: Zoom not working broken?

Sun, 20 Oct 2024 18:19:04 -0700

I'm not sure that this is the same lens as mine but this is my problem: I was trying to but my camera in the bag but the zoom was all out so it wouldn't fit. I tried to zoom out and I did but it was stuck and I had to force it a little and after forcing it it doesn't zoom in anymore. The ring turns perfectly but it does nothing. I also hear a little noise inside like a lose peace? Did I broke my lens?

⟐ Answered octubre 20, 2024 at 18:19 GMT-7

Nikon AF-S VR Zoom-Nikkor ED 70-200mm F2.8G IF: How to fix nikkor afs 70-200 2.8G II ED won't autofocus?

Mon, 02 Mar 2026 01:18:05 -0700

Hi,

I have dropped my nikkor 70-200 afs 2.8G II ED with my camera. I sent them to repair store and apparently they fixed it but I realised that since then my auto-focus with that lens doesn’t seem to work as I get blurry photos. Can someone help me to fix it?

⟐ Answer edited marzo 02, 2026 at 1:18 GMT-7

Camera Lens: How do I fix the fungus on the lense

Thu, 02 Apr 2020 18:02:29 -0700

I have Cannon EF 18-55 lens and have got fungus on it how do I get rid of it.

⟐ Commented abril 02, 2020 at 18:02 GMT-7

Canon EF 28-135 f4.0 IS USM: AF issues can someone please help

Fri, 29 Aug 2025 15:09:36 -0700

why is my lens not holding focus on AF but MF it works just fine

This is what it is doing

So I got the motor yesterday and but everything back together and now it’s says make sure Lens is attached when in video mode and then when I go to photo the f stop flashes from 3.5 to 0 and the af mode goes from -ai servo to MF idk what I did wrong or if the guy sold me a faulty motor

⟐ Commented agosto 29, 2025 at 15:09 GMT-7

Canon Lens: AutoFocus Mode not working

Fri, 22 Nov 2024 17:50:26 -0700

My 18-55 mm lens is not working in AF mode. the outer cylinder is kind of struck and could not focus.

help out with the issue!

⟐ Edited noviembre 22, 2024 at 17:50 GMT-7

Nikon Lens: Nikon Zoom 80-200 ED 2.8 separate the two elements of the first set

Wed, 18 Feb 2026 19:38:55 -0700

Good afternoon, I'm having trouble cleaning the first set of lenses from fungus. I can't separate the two elements of the first set of lenses for the Nikon AF ED Zoom 80-200 2.8 made in Japan. What kind of glue do you use? If any, what solvent can I use? Can it be done with heat? At what temperature? Help!

⟐ Answer edited febrero 18, 2026 at 19:38 GMT-7

Canon EF 70-200mm F2.8 L IS USM: Canon zoom "70-200 2.8L is" focusing infinity problem

Sun, 19 Jan 2025 00:28:05 -0700

Hi, I have a Canon zoom "70-200 2.8L is"

It has a problem in focusing at infinity.

If the lens is set to 10m and the subject at 500m the focus (autofocus) stops at about 20-30 m

If the lens is set beyond infinity the focus (autofocus) works.

I tried to adjust the trimmers present in the lens (noting the prime references) but I was unable to solve the problem.

I suspect that a slot (the last one) of the autofocus encoder is dirty or something similar.

@zephosk Help Me :-D

⟐ Answer accepted enero 19, 2025 at 0:28 GMT-7

Canon EF 70-200mm F2.8 L IS USM: autofocus seems to be hunting endlessly with no resolve

Sun, 12 Jan 2025 00:33:45 -0700

I've recently had this issue, it was dropped, didn't need a new zoom key, now the autofocus seems to be hunting endlessly with no resolve, it was doing it after the drop unless the non functioning zoom ring was set to 135mm (where the lens was stuck), now no matter where the zoom is, no resolve...

⟐ Commented enero 12, 2025 at 0:33 GMT-7