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Dpic_arctic
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I dissected my lens today!-Lots of new photos


I disassembled my Canon EF 35-80mm f/4-5.6 III today. It only took 15 minutes +/- for the actual disassembly and it wasted a couple hours of my day playing with it. You can snag one of these on B&S for super cheap, and it makes a decent super macro lens compromise. And if you do the dissection and re-assembly with care, it can be put back into it\'s normal working order once again.

Here\'s how to do it using a set of jewelery screwdrivers:

1: Remove the the flat plastic ring on the front of the lens that says all of the lens info: \"Canon EF 35-80mm f/4-5.6 III, Canon Inc., Made in Taiwan...\" Just pry underneath it all of the way around until it pops up.

2: After that, the rest is quite obvious- you should see 3 screws which you should unscrew.

3: The front element group should pop out of place.

Focusing must be done by moving the camera/lens toward or away from the subject. Mine seems to focus at about 1 inch or so. The magnification is incredible. The DOF is SUPER shallow. I shot mostly using a tripod and higher f/stop: 8-16. I\'m can\'t say this with confidence, but I would guess the magnification was at least 1:1, probably 1:2. The magnification of the orginal lens compared to the improvised lens is phenomenal. After playing with it for a couple hours, I put it back together, and it worked just like normal! If you have one of these laying around, or if you get one for cheap, then it is worth trying!

Edit: Adorama sells a used version of this for only 50 bucks. You can adjust the magnifications somewhat with the zoom.


Step 1: Pry up the name ring





Step 2: Unscrew the screws underneath the ring





Step 3: Remove the front element group





Sample photo: No, these are not zucchini, these are spruce needles, believe it or not. Not even three-quarters of an inch long each!





Final product:





Before Conversion:





After conversion (no front element group):








Dec 03, 2009 at 02:56 PM
Dpic_arctic
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I dissected my lens today!-Lots of new photos


I disassembled my Canon EF 35-80mm f/4-5.6 III today. It only took 15 minutes +/- for the actual disassembly and it wasted a couple hours of my day playing with it. You can snag one of these on B&S for super cheap, and it makes a decent super macro lens compromise. And if you do the dissection and re-assembly with care, it can be put back into it\'s normal working order once again.

Here\'s how to do it using a set of jewelery screwdrivers:

1: Remove the the flat plastic ring on the front of the lens that says all of the lens info: \"Canon EF 35-80mm f/4-5.6 III, Canon Inc., Made in Taiwan...\" Just pry underneath it all of the way around until it pops up.

2: After that, the rest is quite obvious- you should see 3 screws which you should unscrew.

3: The front element group should pop out of place.

Focusing must be done by moving the camera/lens toward or away from the subject. Mine seems to focus at about 1 inch or so. The magnification is incredible. The DOF is SUPER shallow. I shot mostly using a tripod and higher f/stop: 8-16. I\'m can\'t say this with confidence, but I would guess the magnification was at least 1:1, probably 1:2. The magnification of the orginal lens compared to the improvised lens is phenomenal. After playing with it for a couple hours, I put it back together, and it worked just like normal! If you have one of these laying around, or if you get one for cheap, then it is worth trying!

Edit: Adorama sells a used version of this for only 50 bucks. You can adjust the magnifications somewhat with the zoom.

No, these are not zucchini, these are spruce needles, believe it or not. Not even three-quarters of an inch long each!

Step 1: Pry up the name ring





Step 2: Unscrew the screws underneath the ring





Step 3: Remove the front element group





Sample photo:





Final product:





Before Conversion:





After conversion (no front element group):








Dec 03, 2009 at 02:55 PM
Dpic_arctic
Offline
Upload & Sell: Off
I dissected my lens today!- Updated with photo


I disassembled my Canon EF 35-80mm f/4-5.6 III today. It only took 15 minutes +/- for the actual disassembly and it wasted a couple hours of my day playing with it. You can snag one of these on B&S for super cheap, and it makes a decent super macro lens compromise. And if you do the dissection and re-assembly with care, it can be put back into it\'s normal working order once again.

Here\'s how to do it using a set of jewelery screwdrivers:

1: Remove the the flat plastic ring on the front of the lens that says all of the lens info: \"Canon EF 35-80mm f/4-5.6 III, Canon Inc., Made in Taiwan...\" Just pry underneath it all of the way around until it pops up.

2: After that, the rest is quite obvious- you should see 3 screws which you should unscrew.

3: The front element group should pop out of place.

Focusing must be done by moving the camera/lens toward or away from the subject. Mine seems to focus at about 1 inch or so. The magnification is incredible. The DOF is SUPER shallow. I shot mostly using a tripod and higher f/stop: 8-16. I\'m can\'t say this with confidence, but I would guess the magnification was at least 1:1, probably 1:2. The magnification of the orginal lens compared to the improvised lens is phenomenal. After playing with it for a couple hours, I put it back together, and it worked just like normal! If you have one of these laying around, or if you get one for cheap, then it is worth trying!

Edit: Adorama sells a used version of this for only 50 bucks. You can adjust the magnifications somewhat with the zoom.

No, these are not zucchini, these are spruce needles, believe it or not. Not even three-quarters of an inch long each!

Step 1: Pry up the name ring





Step 2: Unscrew the screws underneath the ring





Step 3: Remove the front element group





Sample photo:





Final product:





Before Conversion:





After conversion (no front element group):








Dec 03, 2009 at 02:54 PM
Dpic_arctic
Offline
Upload & Sell: Off
I dissected my lens today!- Updated with photo


I disassembled my Canon EF 35-80mm f/4-5.6 III today. It only took 15 minutes +/- for the actual disassembly and it wasted a couple hours of my day playing with it. You can snag one of these on B&S for super cheap, and it makes a decent super macro lens compromise. And if you do the dissection and re-assembly with care, it can be put back into it\'s normal working order once again.

Here\'s how to do it using a set of jewelery screwdrivers:

1: Remove the the flat plastic ring on the front of the lens that says all of the lens info: \"Canon EF 35-80mm f/4-5.6 III, Canon Inc., Made in Taiwan...\" Just pry underneath it all of the way around until it pops up.

2: After that, the rest is quite obvious- you should see 3 screws which you should unscrew.

3: The front element group should pop out of place.

Focusing must be done by moving the camera/lens toward or away from the subject. Mine seems to focus at about 1 inch or so. The magnification is incredible. The DOF is SUPER shallow. I shot mostly using a tripod and higher f/stop: 8-16. I\'m can\'t say this with confidence, but I would guess the magnification was at least 1:1, probably 1:2. The magnification of the orginal lens compared to the improvised lens is phenomenal. After playing with it for a couple hours, I put it back together, and it worked just like normal! If you have one of these laying around, or if you get one for cheap, then it is worth trying!

Edit: Adorama sells a used version of this for only 50 bucks. You can adjust the magnifications somewhat with the zoom.

No, these are not zucchini, these are spruce needles, believe it or not. Not even three-quarters of an inch long each!










Dec 03, 2009 at 02:10 AM
Dpic_arctic
Offline
Upload & Sell: Off
I dissected my lens today!- Updated with photo


I disassembled my Canon EF 35-80mm f/4-5.6 III today. It only took 15 minutes +/- for the actual disassembly and it wasted a couple hours of my day playing with it. You can snag one of these on B&S for super cheap, and it makes a decent super macro lens compromise. And if you do the dissection and re-assembly with care, it can be put back into it\'s normal working order once again.

Here\'s how to do it using a set of jewelery screwdrivers:

1: Remove the the flat plastic ring on the front of the lens that says all of the lens info: \"Canon EF 35-80mm f/4-5.6 III, Canon Inc., Made in Taiwan...\" Just pry underneath it all of the way around until it pops up.

2: After that, the rest is quite obvious- you should see 3 screws which you should unscrew.

3: The front element group should pop out of place.

Focusing must be done by moving the camera/lens toward or away from the subject. Mine seems to focus at about 1 inch or so. The magnification is incredible. The DOF is SUPER shallow. I shot mostly using a tripod and higher f/stop: 8-16. I\'m can\'t say this with confidence, but I would guess the magnification was at least 1:1, probably 1:2. The magnification of the orginal lens compared to the improvised lens is phenomenal. After playing with it for a couple hours, I put it back together, and it worked just like normal! If you have one of these laying around, or if you get one for cheap, then it is worth trying!

Edit: Adorama sells a used version of this for only 50 bucks. You can adjust the magnifications somewhat with the zoom.










Dec 03, 2009 at 02:06 AM
Dpic_arctic
Offline
Upload & Sell: Off
I dissected my lens today! (canon 35-80)


I disassembled my Canon EF 35-80mm f/4-5.6 III today. It only took 15 minutes +/- for the actual disassembly and it wasted a couple hours of my day playing with it. You can snag one of these on B&S for super cheap, and it makes a decent super macro lens compromise. And if you do the dissection and re-assembly with care, it can be put back into it\'s normal working order once again.

Here\'s how to do it using a set of jewelery screwdrivers:

1: Remove the the flat plastic ring on the front of the lens that says all of the lens info: \"Canon EF 35-80mm f/4-5.6 III, Canon Inc., Made in Taiwan...\" Just pry underneath it all of the way around until it pops up.

2: After that, the rest is quite obvious- you should see 3 screws which you should unscrew.

3: The front element group should pop out of place.

Focusing must be done by moving the camera/lens toward or away from the subject. Mine seems to focus at about 1 inch or so. The magnification is incredible. The DOF is SUPER shallow. I shot mostly using a tripod and higher f/stop: 8-16. I\'m can\'t say this with confidence, but I would guess the magnification was at least 1:1, probably 1:2. The magnification of the orginal lens compared to the improvised lens is phenomenal. After playing with it for a couple hours, I put it back together, and it worked just like normal! If you have one of these laying around, or if you get one for cheap, then it is worth trying!

Edit: Adorama sells a used version of this for only 50 bucks. You can adjust the magnifications somewhat with the zoom.










Dec 03, 2009 at 02:04 AM
Dpic_arctic
Offline
Upload & Sell: Off
I dissected my lens today! (canon 35-80)


I disassembled my Canon EF 35-80mm f/4-5.6 III today. It only took 15 minutes +/- for the actual disassembly and it wasted a couple hours of my day playing with it. You can snag one of these on B&S for super cheap, and it makes a decent super macro lens compromise. And if you do the dissection and re-assembly with care, it can be put back into it\'s normal working order once again.

Here\'s how to do it using a set of jewelery screwdrivers:

1: Remove the the flat plastic ring on the front of the lens that says all of the lens info: \"Canon EF 35-80mm f/4-5.6 III, Canon Inc., Made in Taiwan...\" Just pry underneath it all of the way around until it pops up.

2: After that, the rest is quite obvious- you should see 3 screws which you should unscrew.

3: The front element group should pop out of place.

Focusing must be done by moving the camera/lens toward or away from the subject. Mine seems to focus at about 1 inch or so. The magnification is incredible. The DOF is SUPER shallow. I shot mostly using a tripod and higher f/stop: 8-16. I\'m can\'t say this with confidence, but I would guess the magnification was at least 1:1, probably 1:2. The magnification of the orginal lens compared to the improvised lens is phenomenal. After playing with it for a couple hours, I put it back together, and it worked just like normal! If you have one of these laying around, or if you get one for cheap, then it is worth trying!

Edit: Adorama sells a used version of this for only 50 bucks. You can adjust the magnifications somewhat with the zoom.




Nov 26, 2009 at 03:07 AM





  Previous versions of Dpic_arctic's message #7821093 « I dissected my lens today!-Lots of new photos »