Sonnar-7 wrote:
My copy does behave the same way, I measured that the closest I can go is 0.45m between the sensor and an object, I believe it should me 0.3 meter as described here and there regarding the specs of the lens.
I never measured the actual MFD but will double check as well.
Sonnar-7 wrote:
I might have to send them an email to see if they consider it to be an issue that needs fixing.
Perhaps at some point the lens was tweaked, because at 0.35m the focus ring rotates so far that it creates a visible gap. I normally focus using the rangefinder and never noticed this, but I can see why focusing much closer would be appealing on a mirrorless camera, although many adapters allow close focusing.
Fred Miranda wrote:
Perhaps at some point the lens was tweaked, because at 0.35m the focus ring rotates so far that it creates a visible gap. I normally focus using the rangefinder and never noticed this, but I can see why focusing much closer would be appealing on a mirrorless camera, although many adapters allow close focusing.
Fred Miranda wrote:
Perhaps at some point the lens was tweaked, because at 0.35m the focus ring rotates so far that it creates a visible gap. I normally focus using the rangefinder and never noticed this, but I can see why focusing much closer would be appealing on a mirrorless camera, although many adapters allow close focusing.
I could use a lens that focus that close with my mirrorless cameras, they are after all my main devices.
Still even if 0.45 meter is a nice number, it got me wonder if there was an issue with the assembly of the lens.
Furthermore the 0.3 meter does seem to be a feature and a selling point regarding the lens, it’s not understated in the papers given in the box and how it is advertised, though I am late to the party for finding out just now.
Sonnar-7 wrote:
I could use a lens that focus that close with my mirrorless cameras, they are after all my main devices.
Still even if 0.45 meter is a nice number, it got me wonder if there was an issue with the assembly of the lens.
Furthermore the 0.3 meter does seem to be a feature and a selling point regarding the lens, it’s not understated in the papers given in the box and how it is advertised, though I am late to the party for finding out just now.
Of course, you are right. You should get what was promised. Where did you read 0.3m? Manual?
This site writes: "Minimum focus distance 0.8m on Leica M, on mirrorless cameras 0.6m"
nehemiahphoto wrote:
Here is MFD + helicoid MFD on a modded a7r2
I was looking for a close focus adapter for some other lenses for my new Sony, but it was already such a headache to find some simple good ones. I’m pretty happy with the ones I found for their build quality and efficiency to adapt all my lenses, I didn’t find any with helicoid with the sale level of quality for now.
Seeing the Ms-Optics being able to go in theory so close was quite welcome but it fell short with my copy.
It's also good to consider adapter thickness when testing with mount adapters as most adapters are a bit thinner than spec and that would impact infinity focusing as well as close focusing but I'm not sure how much. I haven't measured precise MFD with my copy (from initial launch) but I'll try it tomorrow or during the weekend with my spec-accurate Rayqual adapter.
I just went through the 36/1.3 Apollon manual, which lists two minimum focusing distances: 0.8m (RF coupled) and 0.3m (live view). I tested it myself again and consistently get 0.35m on the dot using my Sony A7CR with a standard Voigtlander M-E adapter.
When measuring, always start from the sensor plane (not the front of the lens) out to the subject at the minimum focusing distance.
I did get it from you from the past.
When I looked for some infos on that I stumbled on an old thread where you were delighted by the 0.3 meter distance. Page 4 of this thread I just realized.
It was also stated on a few Japanese website and on the manual of sort given with the lens, I will take a photo of it. There is always a sheet with the Ms-Optics lenses with Miyazaki’s explanations about the lens, some texts and schematics.
Juha Kannisto wrote:
It's also good to consider adapter thickness when testing with mount adapters as most adapters are a bit thinner than spec and that would impact infinity focusing as well as close focusing but I'm not sure how much. I haven't measured precise MFD with my copy (from initial launch) but I'll try it tomorrow or during the weekend with my spec-accurate Rayqual adapter.
Yes, I wondered about that but I tested some other lenses and the difference being 0.1 or 0.15m seems more than it should even considering that.
Thanks for checking it out.
I measured the closest focus distance from sensor plane on my copy of the lens with my Rayqual adapter and I'm getting 41.5 cm wide open, and the distance seems to be slightly more (around 42-43cm) when stopping down to f2 and f2.8 prior to focusing. This is based on checking sharpest focus based on peaking & magnification with the camera sitting on a table and with a book standing in the middle of the table as a focusing target (central point focusing).
There's no visible gap on my copy when rotated to the closest focusing position. I suppose there's some copy-based variation regarding this. I haven't felt restricted by the close-focusing capability on my lens although I've used it mostly with my non-helicoid Rayqual adapter, but I have a few helicoid adapters as well.
Juha Kannisto wrote:
I measured the closest focus distance from sensor plane on my copy of the lens with my Rayqual adapter and I'm getting 41.5 cm wide open, and the distance seems to be slightly more (around 42-43cm) when stopping down to f2 and f2.8 prior to focusing. This is based on checking sharpest focus based on peaking & magnification with the camera sitting on a table and with a book standing in the middle of the table as a focusing target (central point focusing).
There's no visible gap on my copy when rotated to the closest focusing position. I suppose there's some copy-based variation regarding this. I haven't felt restricted by the close-focusing capability on my lens although I've used it mostly with my non-helicoid Rayqual adapter, but I have a few helicoid adapters as well....Show more →
This is very interesting, and I do believe there can be variation between batches. Just for clarity, my copy is from the initial batch, and it's the silver version.
Fred Miranda wrote:
This is very interesting, and I do believe there can be variation between batches. Just for clarity, my copy is from the initial batch, and it's the silver version.
Mine is a black one from initial batch (shipped to me from MKDirect as part of the initial wave shipments). I remember that Black version started shipping out about 1 month before Silver version.
When you rotate your lens to MFD, does it create a small gap between the focusing section and the barrel? My copy extends so much that such gap is produced. Perhaps MS Optics reduced the extension to avoid this?
Just guessing.
Juha Kannisto wrote:
Mine is a black one from initial batch (shipped to me from MKDirect as part of the initial wave shipments). I remember that Black version started shipping out about 1 month before Silver version.
