Canon EF 100mm f/2.8L Macro IS USM

SereneSpeed wrote in post #18815031
I was a bit surprised that the EF 100 Macro IS L still hunts with the EOS R. It's the only L lens I've ever owned that hunts and sometimes can't lock focus. I thought it would be better on the EOS R, but it's not.

This is pretty rare under 'everyday use' but consistent for me with the 5D3, 5D4, 1DXii and EOS R, when shooting tabletop products on white. And it does not happen in the same scenario, with different lenses.

Anyone else noticed the 100L hunting? Maybe it's my lens...

Oh, and I do limit the focus range.

Mine does it sometimes on my 5D3 but I can't tell in what specific situations; never paid attention to it but now I will and will be happy to report back.

SereneSpeed wrote in post #18815031
I was a bit surprised that the EF 100 Macro IS L still hunts with the EOS R. It's the only L lens I've ever owned that hunts and sometimes can't lock focus. I thought it would be better on the EOS R, but it's not.

This is pretty rare under 'everyday use' but consistent for me with the 5D3, 5D4, 1DXii and EOS R, when shooting tabletop products on white. And it does not happen in the same scenario, with different lenses.

Anyone else noticed the 100L hunting? Maybe it's my lens...

Oh, and I do limit the focus range.

Mine does to(on 7d, 5dIII and 5dIV) but mostly when focussing very close and handholding so my tiny movements can change the plane of focus and it is constantly correcting(al least that's how I explained it) never noticed it when using as a normal lens.

SereneSpeed wrote in post #18815031
I was a bit surprised that the EF 100 Macro IS L still hunts with the EOS R. It's the only L lens I've ever owned that hunts and sometimes can't lock focus. I thought it would be better on the EOS R, but it's not.

This is pretty rare under 'everyday use' but consistent for me with the 5D3, 5D4, 1DXii and EOS R, when shooting tabletop products on white. And it does not happen in the same scenario, with different lenses.

Anyone else noticed the 100L hunting? Maybe it's my lens...

Oh, and I do limit the focus range.

pcs wrote in post #18815138
Mine does to(on 7d, 5dIII and 5dIV) but mostly when focussing very close and handholding so my tiny movements can change the plane of focus and it is constantly correcting(al least that's how I explained it) never noticed it when using as a normal lens.

Well, in my case it's probably my own fault: i forget to switch between 0.3m-0.5m; 0.5m-∞ and Full. But sometimes it still goes out of focus, so I hold the BBF and press the shutter button simultaneously. That works for me, though it's annoying at times.

Some flower shots from my front yard.. Spring is just around the corner!

Photo from txsizzler's gallery.
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Photo from txsizzler's gallery.
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Photo from txsizzler's gallery.
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Photo from txsizzler's gallery.
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My handsome visitor ♥

Photo from itsallart's gallery.
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From this afternoon..

[GALLERYIMAGE]: embed failed, id not found (image not in gallery any more)


[GALLERYIMAGE]: embed failed, id not found (image not in gallery any more)

SereneSpeed wrote in post #18815031
I was a bit surprised that the EF 100 Macro IS L still hunts with the EOS R. It's the only L lens I've ever owned that hunts and sometimes can't lock focus. I thought it would be better on the EOS R, but it's not.

This is pretty rare under 'everyday use' but consistent for me with the 5D3, 5D4, 1DXii and EOS R, when shooting tabletop products on white. And it does not happen in the same scenario, with different lenses.

Anyone else noticed the 100L hunting? Maybe it's my lens...

Oh, and I do limit the focus range.

I have the same issues with mine. Tried it with my 1DX2 the other day and it started to mess about. I find it very strange.

txsizzler wrote in post #18815363
Some flower shots from my front yard.. Spring is just around the corner!

Gallery photo (hosted):
posted by txsizzler originally in forum: Canon Digital Cameras

Gallery photo (hosted):
posted by txsizzler originally in forum: Canon Digital Cameras

Gallery photo (hosted):
posted by txsizzler originally in forum: Canon Digital Cameras

Gallery photo (hosted):
posted by txsizzler originally in forum: Canon Digital Cameras

Shot number #2 is what we call Hibiscus, I did have many hibiscus plants but this years freak snowfall has killed them all . Great set by the way, well done.

itsallart wrote in post #18815048
Mine does it sometimes on my 5D3 but I can't tell in what specific situations; never paid attention to it but now I will and will be happy to report back.

pcs wrote in post #18815138
Mine does to(on 7d, 5dIII and 5dIV) but mostly when focussing very close and handholding so my tiny movements can change the plane of focus and it is constantly correcting(al least that's how I explained it) never noticed it when using as a normal lens.

Red Dexs wrote in post #18815671
I have the same issues with mine. Tried it with my 1DX2 the other day and it started to mess about. I find it very strange.

Thank you!

It's pretty minor. I Just thought I'd make sure it wasn't just my lens. I guess having all that focus range makes it a bit unique.

[GALLERYIMAGE]: embed failed, id not found (image not in gallery any more)

[GALLERYIMAGE]: embed failed, id not found (image not in gallery any more)

Mine does with 7D2, but I figure it is its nature with shooting close one moment and far later. Similar deal with my 150-600 sometimes.

SereneSpeed wrote in post #18815031
I was a bit surprised that the EF 100 Macro IS L still hunts with the EOS R. It's the only L lens I've ever owned that hunts and sometimes can't lock focus. I thought it would be better on the EOS R, but it's not.

This is pretty rare under 'everyday use' but consistent for me with the 5D3, 5D4, 1DXii and EOS R, when shooting tabletop products on white. And it does not happen in the same scenario, with different lenses.

Anyone else noticed the 100L hunting? Maybe it's my lens...

Oh, and I do limit the focus range.

Red and yellow stripy beetle from Ecuador.

Photo from Archibald's gallery.
Image hosted by forum (962599)

Macro lens....astrophotograp​hy, I have to admit I wouldn't have thought to put the two together, but I'm glad you did. These are very fine photographs. Thank you for sharing.

SereneSpeed wrote in post #18815031
I was a bit surprised that the EF 100 Macro IS L still hunts with the EOS R. It's the only L lens I've ever owned that hunts and sometimes can't lock focus. I thought it would be better on the EOS R, but it's not.

This is pretty rare under 'everyday use' but consistent for me with the 5D3, 5D4, 1DXii and EOS R, when shooting tabletop products on white. And it does not happen in the same scenario, with different lenses.

Anyone else noticed the 100L hunting? Maybe it's my lens...

Oh, and I do limit the focus range.

I had my EF 100 L do this on my 5D Mk III and I actually sent the lens to CPS because I thought there was a problem with it.
The CPS tech I spoke to on the telephone and I, could not figure out the problem over the phone before my sending it in.

Turns out the lens was just fine and I had "Lens drive when AF impossible" incorrectly set for the circumstances in which I was using it.
This option is located in the AF 4 tab on a 5D Mk III.
A forum member suggested the solution above to me, a few years ago.

Perhaps this setting may or may not help to resolve usability issues for others, or, I could be befuddled again......