lucabutera
-
Posts
381 -
Joined
-
Last visited
Content Type
Profiles
Forums
Articles
Posts posted by lucabutera
-
-
16 minutes ago, ttbek said:
Ah, I misinterpreted your video, I thought you had it working like the metabones adapter. I'm going to disagree here though, my goal is to have true AF by the camera body controlling the lens. I agree that the other project is great for video shooters, probably even much better for them than what my goal is, but I am primarily a stills shooter. I'm kind of tempted to order one anyway, this is the conversion kit alone right? So one would need to buy the Apurture DEC separately, correct? My Italian is non-existent :P If you could manufacture a smart adapter it would let me focus on the firmware, as is the crudeness of my adapter takes too much time from coding. I don't have any nice tools for making it, relying on epoxy and soldering from parts entirely taken and sawed apart from macro extension tubes putting them into a dumb adapter for now. Actually, the part from the NX macro tube fits beautifully into the dumb adapter, but the Canon side is problematic. Just having something with contacts on the NX and Canon side, with corresponding contact points on the outside of lens such that a logic analyzer can be place in between would be pretty awesome, even more so if it can be done to an NX-L.
I put in for two NX-L adapters, how should I send you my shipping info and phone numbers, I didn't see a place to enter it, just send it to your email listed there?
Also my English is not very good ... It is only a conversion kit, the Aputure dec must be bought separately.
The metabones smart adapter with sony a7s never took the correct focus, with little light went wild, often crashed and I had to remove it from the camera to restart it, a disaster, if you think you can do better than metabones or you are a genius or you are a fool, you'll never get a satisfactory result and compatibility with all lenses and you'll have thrown time and money. This is my thinking and I would not advise you to proceed on this project.
For NXL adapter you can proceed with the purchase, I will receive your shipping address and before I will ask you to send address confirmation of shipment.
Thanks and best regards -
50 minutes ago, Parker said:
Hey @lucabutera, does your conversion kit work with the E-mount DEC, the MFT one, or both?
I worked on EF/ E mount.
-
4 hours ago, ttbek said:
Hey Luca, I have some requests for this since your pace is much faster than mine. When you put out the adapter, can it have external connection points for monitoring the communication? Can it have a standard port over which the firmware can be updated (Canon does update EF protocol sometimes). And can you open source the firmware? Even if it is still paid firmware it would be good if users can make their own changes to keep it working with newer EF lenses if Canon makes minor changes that make it stop working (as they have stung some of the 3rd party lensmakers with in the past). I don't know what sort of chip your are using, hopefully it is something not too tough to program for ^_^. Your timing is too good, you will retire the NX-L before I got around to ordering mine :P I want to support this though so I will still order, and if it turns out to be working well enough for BIF with the long primes then I'm going to owe you more T.T :P I will try ordering NX-L today, please include my phone number in the address area (otherwise the post here will probably ship it back to you). Orange and red shirts, hurrah!
Ttbek Hello, you're right, I also do not want to finish my projects with a white beard, so I have been working on this great project.
Now I can offer two new accessories:1) lens NXL speed booster,
2) smart adapter.
I do not want to work on the code for communication between the camera and the lens, I have experience with metabones smart adapter, he had a multitude of problems with Sony a7s, it was always in the crash, so I anticipate that it is an experiment already failed in start which will never work well.
I think it's better to work on a separate autofocus independent reporting system that measures the framed object distance, this is possible and we have the technology and economic resources to do so p (the rest will publish some projects).
While waiting I invite you to watch this latest project, very useful for all videomakers.
Thank you, I wait your order for NXL today ;-)https://www.produzionidalbasso.com/project/conversion-kit-aputure-dec-canon-lens-samsung-nx/
-
-
-
2 hours ago, ChristieEnglish said:
Good job Luca!!!!
TNX.
-
-
4 hours ago, Pavel Mašek said:
Please provide more details or pictures...
Will IS (image stabilization) works too?
Hi Pavel, yes IS work, this last work revolutionary the Samsung nx camera users.
- SMGJohn, sandro, Pavel Mašek and 4 others
-
7
-
30 days.
-
-
Just now, carlic said:
Are you saying that certain filters can eliminate defects like fringing?
Yes, follow this link: https://***URL removed***/forums/thread/3515049
p.s. the last picture is take with new NXL (no prototype).
-
3 hours ago, carlic said:
Thank you. I thought it was a bit brighter, but didnt think it could invoke that much fringing. Can you comment what kind of glass was used? Standard or low dispersion (ED) ?
I did not use filters, I just shot with the sun at my back that the front illuminating the subject.
Certainly a good lens, and the use of photographic filters of quality, eliminate defects, optimize the scene and improve the final result. -
14 hours ago, carlic said:
Great job, thanks! As expected for a wide aperture it is soft with lots of chromattic abberations.
For the sharpnes edge to edge, I meant a shot at the sharpest aperture like f8, you can even use a sharper lens if you have one.
As for purple fringing I was suprised how much more promemant was with the booster (right), why do you think that is?
Thank you Carlic, what you see is only a perception caused by an increase in brightness, picture 1 (without NXL) and picture 2 (with NXL) have the same purple fringing, no sane photographer would shoot to 1.8 (1.4 with NXL) in the midday sun!
Remember that I am using a Canon 50mm 1.8 cheap lens, it created the purple fringing.
I today took a picture at 10:30 morning, when the sun is back my shoulders , always f1.8, no purplue fringing and excellent sharpness.
Raw file : SAM_0616.dng
- Inazuma, Marco Tecno, Kisaha and 1 other
-
4
-
NXL comparision test:
1) Bokeh - with and without NXL;
2) flare - with and without NXL;
3) sharpness - with and without NXL.
Camera, Samung nx1 - lens,
Canon 50mm 1.8 - model Bubu.
raw files included.
- Marco Tecno and Parker
-
2
-
1 hour ago, ttbek said:
Not good news :P First I tried with Canon 40mm pancake, the lens wasn't responding at all, I suspect that the protocol has expanded a bit. Spent that weekend trying to get any kind of response to no avail. Good-ish news, during the week I tried the 28-135 and there is definitely movement in the lens, but I've had no time to explore further. It seems like I might need to get a logic analyzer to have a shot at it working with newer Canon lenses. If anyone wants to leapfrog me, there is someone that claims to have made such a working adapter for basic manual control using buttons on the adapter for focus and aperture, and was actually using it on NX.
Scroll way down to the post by a Peter S on January 2, 2012 at 14:15
https://pickandplace.wordpress.com/2011/10/05/canon-ef-s-protocol-and-electronic-follow-focus/
Need to adapt that code to Arduino Nano when I get a chance, very similar microcontroller used in his project.
http://blueringlab.com/2016/03/canon-ef-lens-aperture-control-test/
It's too bad he didn't post that code, the answer to his unresolved precise aperture setting is in Peter's post.
http://howiem.com/wordpress/index.php/2016/07/07/motion-control-canon-ef-lens-hacking/
Is an informative post, he also has code available, but it is a bit different, being driven from a connected computer rather than a microcontroller, etc.. but still possibly useful.
In my searching about, it seems that almost everything the public knows about the EF protocol originates from this German thread:
http://www.dslr-forum.de/showthread.php?t=649529&page=61
Which is unfortunately a jumbled mess and all the useful compilations of the info some members made seem to be defunct. Still, it's worth combing through.
The next step for me I think is to re-verify the physical integrity of my connections, then start working with the 28-135 instead of that obnoxious 40mm. Not sure 100% about the logic analyzer yet... but since I'm thinking it will be needed eventually I'm starting to feel like I should order one soon.
The NX side is easier and harder. I think I have quite a bit more concrete information on the protocol, thanks in part to rockymountain's blueringlab site, but this side likely involves fooling the camera about certain aspects of the lens and spoofing lens responses.
Luca: If I want more than one focal reducer should I donate that number of times? <- in bold because the site is merging my posts and I thought this should be separate.
Hallo ttbek, I think so. How many NXL you want to take?
If you tell me the number, I can try to adding a multiple rewards. -
On 4/10/2016 at 8:46 PM, carlic said:
One with 50mm an aperture wide open and a subject in the foreground for like portrait work and bokeh representation.
One shot with a lot of detail across the frame at its sharpest aperture, to judge edge to edge sharpness.
One contrasty with hard light in the background and wide open to check for any possible additional chromatic aberrations. Like through the fine braches of trees against the sun or such.
Any additional example is a good example really.
Thanks!
Hallo Carlic, these is a quick tests.
All shot at full aperture, lens Canon 50mm 1.8 (old series), the focus is always at the center of the picture.Raw files:
-
4 hours ago, carlic said:
I would love to order one, but from the lack of sample photos is really hard to jump the gun. Can you paste more comparisons raws or send one to someone for a review?
Its hard to rely on early adopters to make and post tests. Thanks!Hi Carlic, certainly, what kind of picture you would like I posted?
-
-
2 hours ago, sidi said:
Just a side note: I would never use a NX logo as you are potentially opening yourself to a trademark infringement lawsuit.
Hi Sidi, thanks for your advice but this would be the good news, "Samsung finds interest in the NX system after months of silence!
They sue me for similar mark, and I sue them for selling me a new camera and closed production after six months!!!!!
- Marco Tecno and SMGJohn
-
2
-
1 hour ago, kidzrevil said:
@lucabutera ok i will take your word for it. Let me know when they are ready to order or beta test
No friend, this project will end with this crowdfunding.
-
On 27/9/2016 at 1:42 PM, ttbek said:
Hey Luca, ho guardato i RAW a pochi giorni fa. E 'solido, ma non eccezionale, vedo una perdita di nitidezza e altre aberrazioni minori. Forse Darktable non sta facendo l'esposizione perfettamente ragione, o l'adattatore non ha grande trasmissione, la luminosità è stata aumentata di circa 0,35 fermate. Dal momento che si tratta di una coltura 1.1x, invece di 1x un punto fermo non deve essere previsto, ma mi aspettavo di più come .6 o .7 fermate. Eppure, è abbastanza decente, penso di ottenere uno presto.
Hello everyone, sorry for my absence but these days I had to work commitments.
I will try to suit guests Dere to the most important questions.
Thanks ttbek from you technical advice but just me right now I can state with certainty the stop difference. It is very close to -1 stop, (soon I will make a test to evaluate this feature).
As for sharpness, the raw test that I posted, it is fammo first with normal lens, the picture later with adapter took too much light and reflection of white table has over illuminated the scene distorting the result and sharpness. Place another file shot with Canon 50mm f1.8 a photo taken on a wall in broad daylight.
On 27/9/2016 at 1:18 AM, kidzrevil said:what kind of lens was used for test ? This looks more like super35mm crop than it does full frame.......hmmmm
Hello Kidzrevil, usually you have a good eye, in fact, have you noticed that the crop is less than NXL can do, but you have not thought to stabilize images in Premiere the picture is cropped! The original file has larger frame.
Meanwhile'm excited to have received your new NXL. I love it!!! They are almost ready. I ask only a little patience. Bye!
-
5 hours ago, carlic said:
Luca can you create an album on flickr and upload more pictures as reference? Im sure it would make even more people excited. Make it an open type and other users will be able to upload their samples as soon as they recieve it.
What do you think?
It's a good idea.
-
-
- cisco150, tokhee, Marco Tecno and 1 other
-
4
Petition for Samsung NX1 hack
In: Cameras
Posted
I believe that the only possible solution is to build a 2x teleconverter lens NX prototype, mounted on your lens 50-150 f2.8 s becomes a 100-300 s f5.6 and preserves all automatic. You do not have other solutions.