Repareer je spullen Gemeenschap Winkel

Handleidingen voor reparatie en demontage van objectieven van spiegelreflexcamera's, digitale spiegelreflexcamera's en systeemcamera's met verwisselbare lenzen.

48 Vragen Bekijk alle

Opties

calibrating the aperture assembly on a canon 24-105 F4L

i replaced the aperture flex cable of my canon 24-105 which was badly torn and causes err01 when i try to use my lens. but i was not able to make a careful mark on the 3 eccentric setscrews that is used for the alignment of the 3rd group optics in the aperture assembly. now i am able to use my lens but all images captured are not that sharp as before and compared to my other lenses i can really say that my 24-105 is bad and out of calibration. i need a guide to calibrate the 3 eccentric setscrews... i found some guide somewhere but it is not clear how.. i need in layman's term if possible with illustrations

Beantwoord! Bekijk het antwoord Dit probleem heb ik ook

Is dit een goede vraag?

Ja Nee
Score -1
Voeg een opmerking toe

2 Antwoorden

Filteren op:
Meest nuttige Nieuwste Oudste
Gekozen oplossing

Opties

There is two ways you can do this:

The first is using a collimator which is an artificial image set to infinity this is how the pros adjust lenses in the shop. Edmund Optics Vid on collimation

The other is on a clear night with a visible moon use it as your target. Adjust the lens so it is set for the most zoomed in and set manually for infinity. Adjust the lens group so the image is sharp that should do it.

Here's one other method using a second camera Using a second SLR camera as a collimator

Was dit antwoord nuttig?

Ja Nee
Score 5

3 opmerkingen:

wow, thanks alot Tom Chai.. i will try this one... i will look for other slr camera to be used as collimator

door

FYI - It was Dan not Tom that offered you that answer ;-}

door

This is real hardcore stuff. I never tried to repair optical equipment. I usually just replace the entire module

door

Voeg een opmerking toe

Opties

You'll need professional equipment. There is a reason why the lens are so expensive

Was dit antwoord nuttig?

Ja Nee
Score 1
Voeg een opmerking toe

Voeg je antwoord toe

ray floyd zal eeuwig dankbaar zijn.
Weergavestatistieken:

Afgelopen 24 uren: 0

Afgelopen 7 dagen: 0

Afgelopen 30 dagen: 0

Altijd: 4,243