Frage von Jan-Paul:
Hi,
We just completed a test setup with EX1 and Letus Extreme. Currently still with Nikon optics and s.morgen with Arri Primes.
The following problem but now we have: The right edge (about 1 / 4) is blurred. It is not a vignetting, as I focus on this area may be synonymous. Then, however, is blurred central area.
It seems as though the image planes (Mattscheibe Optics for EX1, EX1 or chip) is not parallel.
The screen itself, we get de facto synonymous not quite sharp. Unsharp she is also in the right edge of the screen, or depending on how one defines the sharpness level, precisely in the middle.
Looks like as if the screen is moved or the mirror system.
What is the problem and could solve it. Tips and hints of any kind are welcome. If possible, the fastest means.
Thank you
Antwort von Axel:
Look at times of the sample clips Ph. Bloom, Letus on the page links are closer. On most of you is the phenomenon described in fields with the blur to be seen. Could it be that the normal achromat of the Letus Extreme is not for the Optics of the 77 EX-1 is optimized? The Letus Extreme is normal for 72er (DVX, HVX, XH-A1) optimized the Letus Ultimate "for the EX-1.
Antwort von PUDU:
Perhaps this is synonymous of a Gummiplöppel resolved, with which the mat washer is suspended. They screwed the whole time and watching carefully to determine whether all the legs of the screen holder are engaged. Avoid necessarily touching the screen or leave crumbs.
Antwort von Jan-Paul:
@ Axel: Thanks for the answer first. However, we realize this fact and we have the extremes, therefore, directly with the EX1 Kit and the 77 ring ordered translation. Ie one for the EX1 optimized and the translation Achromatenlinse ring. That is a completely clear picture sure. According Letus of any event:
This optimization kit includes a custom achromat lens and a 77mm thread ring specifically designed for the SonyPMW-EX1 XDCAM. This correct the issues in the SonyEX1 lens and gives you sharp focus across the entire image. This kit is s.add-on for the Letus35 extremes. You must have s.Extreme with a removable rear achromat lens for this kit to work. This is a direct replacement for the stock achromat and includes s.optimized thread ring specific to the EX1 s.well. @ Pudu: The screen I have views and this looked good. Will now take a closer look drauf throw. Thank you.
PS: No fear, I will be careful not to touch the screen. Have ever seen in a Redrock. Since then, a comic flits nondescript structure through the Picture, which is the state of the screen as a greasy finger out;)
Antwort von Axel:
If you can exclude that your KB-optics to produce blurred (to make things short, how did the A1 - the setup, and found that not all lenses are suitable.), That would be a reason to contact Letus.
Otherwise, I see something more in demo footage with the EX-1. It was probably the first series with a problem with the longer focal lengths (and since in the adapter-screen zoom in need, with the A1, for example, to a proud 70%, is probably the most relevant). A test without the power adapter by her on a Siemens star einzoomt. Is everything OK, is probably of a non-optimal Achromats / Adapters expect.
Antwort von Jan-Paul:
@ Axel: We can exclude that the KB optics with a Nikon camera blurs produce. We have a 50mm and a 85mm Tested. Furthermore, we do not get completely sharp screen, even if it does not sit Optics. Letus, we have already contacted by mail.
Without adapter:
At the longest focal in bildfüllendem Siemenstern this in all areas of sharp frame. It is therefore not synonymous.
@ Pudu: The screen is clean and synonymous to the Gummifüsschen are clean inside. I have the synonymous distances to the screen housing is measured and the screen is parallel to, say plan.
What course synonymous still could be moved, the Prism system. I will not watch me, because the granti lapse if the prism box is opened.
Has anyone an idea? Thank you
Antwort von Axel:
Has anyone an idea? Thank you Schon. The situation is comparable with the figure of a tiny film image on a large canvas. A mini-minimal slant plate lens blur effect these areas. Before you get bored abwinkt, try the following: Take the sharpness with 1m at the Siemens star adjusted
with the Nikon lens
mount adapter from the down and puts it back on. Adjusts it so that it no longer exists blur areas. Then fix it.
Antwort von Jan-Paul:
Hm, that I could try again. However, the total power is not prime example of fixed installation. I am now, however, already at home and needs to work on tomorrow. Letus I both via email as synonymous in the forum approached. If it were not coming until tomorrow, the adapter probably go back. We will start holding s.Freitag evening with the shooting and it will probably be tantamount to a P & S to borrow.
Since the check to be synonymous, I have until noon tomorrow and then probably tinker with the P & S must ranholen. Slightly annoying, since we have that extra Optimization Kit purchased unds have still not funzt.
Antwort von Axel:
Well, I had read about the fact that the screen without the lens is not sharp. Then use the well-nothing. Probably a Monday device. I'm curious to see how the P & S in Comparison behaves. Is probably an adapter for Movies-Lenses (?). Since the screen is only half as large as in KB, it will be twice as difficult to filter threads of 77mm without vignetting on this screen to focus. If the solution is perfect, the course explains the price difference to the Letus. Please reports, synonymous, of what the Letus say.
Antwort von Jan-Paul:
Yes, probably a Monday device.
The P & S, I had no problems. Know it halt only in the setup with the HVX200. Even with the M2 of Redrock I had no such problems, but many others.
The optics with the movies I do not understand. Do you now designed for 35mm cameras High speed optics?
The screen of the Letus is even bigger than 35mm miniature, namely 46x30mm. Of course, this area is never right.
Or are you speaking of the P & S? When I do not know how big the screen is. Will show how well the EX1 with the plays together.
Of the optics, there are no problems, because we have a set of Zeiss Distagon 35mm lenses have highspeed. I will next report.
Antwort von Axel:
On the P & S states that the HP MINI35:
Optimized for 35mm film lenses - motion and still - And that always confused me, because KB 24x36 mm, 35mm film cameras but 18x24 mm recording area have, and yes they are synonymous, if you have the full focus range want to use (and absolutely correct focus), not changeable, so it is perhaps on the " Movie pictures nor next zoom in on the same screen?
Antwort von Jan-Paul:
Yes, you have pretty much pure zooming. With the setup EX1 and MINI35 of P & S I had to almost stop reinzoomen. I have the same distance at times with a small addition made. Huge difference. If a 50mm Prime matcht thing is the rather small with a 85mm. And even that is not yet Teligen enough.
But the picture is sharp in all peripheral. That is for me now look at the merits.
Letus came from so far no response. Sad. So if you really want to work but I would rather a P & S bonds. They have not disappointed me so far.
The Redrock follow focus as we had in the setup now flies out of the way, synonymous. The translation is not true. Of infinite order in the vicinity to come up, I must make two turns. Scale is thus impossible to draw.
Antwort von Axel:
The Redrock follow focus as we had in the setup now flies out of the way, synonymous. The translation is not true. Of infinite order in the vicinity to come up, I must make two turns. Scale is thus impossible to draw. That I would say you can. For there is only FollowFocus Chrosziel (see
here) or trick (Recommendation of Calumet), the focus positions on a 5mm marking of Tesa tape, which immediately before the focus ring around the lens is stuck, and to write with a terminal filter of an assistant to be drawn .
The setup XH A1 Letus Extreme prepares the way, at least for us, no problems.
Antwort von PUDU:
The setup XH A1 Letus Extreme prepares the way, at least for us, no problems. I have the same setup. What bothers me is that despite vibration activated the grain of the screen, though only dimly, but still remains visible. Is it synonymous with you?
Antwort von Axel:
What bothers me is that despite vibration activated the grain of the screen, though only dimly, but still remains visible. Is it synonymous with you? We use only the apertures of 1.4 to 2.8, astrein Picture, but we will see the screen, despite vibrating screens at <5.6. At 1.4, it is sometimes not at all, if you forgot to put the adapter on. In addition, we use exclusively 1/50tel Shutterzeit at extremely short Shutterzeiten like she Bloom with the EX-1 for some slow motion is used, there will be a strange flickering (see the beginning of
autumn's done come). We have also noticed that a lot, especially the elderly, Nikon Lenses, to say careful to say, are suboptimal. You notice it only in direct comparison with the new lenses, but they do in almost every respect more beautiful pictures, unfortunately, synonymous even used for a multiple. Since we are now in our little pool of videographers s.Ausschuss have bought a lot of what needs to be sold again, after I post a list of times with good optics, we meet the same eh Kassensturz.
What annoys us most is that you zoom and focus ring of the A1 is not able to block. How easy to get times s.den fat ring sharpness, and adjusted the thing was a hint, of course, is crucial! Is really the pilot checklist of last word on the subject?
"Focal? Roger.
Fokus? Roger." - And before each recording.
