07-01-2020 06:47 PM - edited 07-01-2020 06:47 PM
Canon 70D works fine with other lenses, but with the EF-S 55-250mm f/4-5.6 IS STM only a very blurry image. Can see and takes pictures of objects at about 1 inch distance but anything farther apart is blurry. Help!
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07-02-2020 11:29 AM
" If I 'screw' the .43x wide angle comverter w/macro, then I am able to see the image."
OK slowly now, is there anything screwed onto the front of the lens? Anything? Remove any and all whatevers from the front of the lens. Is there anything attached to the back of the lens? Remove it too. You should have just the lens no add ons, no filters, no lenses. Nothing but the EF-S 55-250mm f/4-5.6 IS STM itself.
Reset your camera to factory. Menus, tools, clear all settings and clear all custom settings.
Now mount it to your camera and try it. Lens switch in the AF position. Camera in P mode on the dial. ISO 200. One shot mode. Do not use Ai-servo. Go outside on a nice sunny day and take several shots of various subjects. Maybe a nice park. If it works, it works and there is nothing wrong with your gear. If it does not work the lens is faulty. Replace it.
Do the test exactly as I have stated it.
07-01-2020 11:17 PM
07-02-2020 05:39 AM
Being an STM lens you will need to switch it to MF then hold the shutter button halfway before turning the lens focus ring. If you can get correct focus in this way but not when it is switched to AF then you very likely have a faulty lens.
07-02-2020 08:39 AM
Thanks for your response. I tried your method but still no image.
This is what I get from any distance farther than 1":
07-02-2020 10:03 AM
Is there a macro filter on the lens?
07-02-2020 10:25 AM
Yes: Macro 0.85m/2.8ft
07-02-2020 10:41 AM
@CDC wrote:Yes: Macro 0.85m/2.8ft
That doesn't exactly sound like a lens filter. A lens filter is something that can be temporarily screwed on to the front of a lens, A macro filter will allow you to focus on objects much closer to the lens than what you could normally do. Being able to focus one inch from the lens is MUCH closer than the listed Miinimum Focusing Distance specified for that lens.
The price you pay for being able to focus so close is that you lose the ability to focus further away. If there is a filter, remove it.
07-02-2020 11:05 AM
Thanks for your input. There is nothing attached to the lens. If I 'screw' the .43x wide angle comverter w/macro, then I am able to see the image.
07-02-2020 11:07 AM
These lenses were working fine previously. This is a new sympthom and I am not sure if its operator error or physical damage to the lens.
07-02-2020 11:29 AM
" If I 'screw' the .43x wide angle comverter w/macro, then I am able to see the image."
OK slowly now, is there anything screwed onto the front of the lens? Anything? Remove any and all whatevers from the front of the lens. Is there anything attached to the back of the lens? Remove it too. You should have just the lens no add ons, no filters, no lenses. Nothing but the EF-S 55-250mm f/4-5.6 IS STM itself.
Reset your camera to factory. Menus, tools, clear all settings and clear all custom settings.
Now mount it to your camera and try it. Lens switch in the AF position. Camera in P mode on the dial. ISO 200. One shot mode. Do not use Ai-servo. Go outside on a nice sunny day and take several shots of various subjects. Maybe a nice park. If it works, it works and there is nothing wrong with your gear. If it does not work the lens is faulty. Replace it.
Do the test exactly as I have stated it.
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