View Full Version : JVC HD 201 and 35mm adaptors
Simon Duncan February 15th, 2007, 11:08 AM Thanks Phil,
Yeh I remember the number of times handing you the 35mm lenses but I was in XDCAM HD land so my mind was taking up with that. Plus your kit was far from on the small side. Too many toys to take in for a one day shoot. But fun and more than educational.
But as a general rule what price spread would one expect to pay for each of your 35mm lenses? Just a rough figure since I am sure each lens would vary.
Phil Bloom February 15th, 2007, 11:12 AM standard lenses 50mm and 85mm if you aim for f1.4 you are looking at about £200 each. Fast wider lenses can cost a fair bit. Key is with anything from 35mm to 85mm don't go below f1.8 and for any lens including zooms f2.8 is the slowest you should be looking at. Cheapest lens cost me about £70 most cost me £500 and that was the Zeiss 85mm f1.4...you wouldnt need that just a nice fast second hand Nikon would do.
Simon Duncan February 15th, 2007, 11:21 AM What might you suggest as an start up kit regarding 35mm lens?
Meaning is there maybe 3 lenses to start with that would give you a resonably broad palette to work with?
Phil Bloom February 15th, 2007, 12:54 PM There are four lenses I always have on me when shooting with my Brevis or M2.
A Sigma f1.8 20mm
then a Nikon (or in my case Zeiss) 50mm f1.4
85mm f1.4
and a 135mm f2.3/ f2.8 if you can find one. i have a vivitar series 1 which is a very nice piece of glass.
These will cover all your bases and you are unlikely to need any others, especially with the Brevis.
Chad Terpstra February 15th, 2007, 01:43 PM Phil, I have noticed a fair bit of noise coming from my HD100 as well but only in certain conditions. Attached is a pic from a shoot at sunset. This is the worst it has been at 0db. I find that low light + red/orange light is what triggers it. I've been quite satisfied with the imagery otherwise and on most other shoots.
(This shot is with the stock lens)
Phil Bloom February 15th, 2007, 03:31 PM Phil, I have noticed a fair bit of noise coming from my HD100 as well but only in certain conditions. Attached is a pic from a shoot at sunset. This is the worst it has been at 0db. I find that low light + red/orange light is what triggers it. I've been quite satisfied with the imagery otherwise and on most other shoots.
(This shot is with the stock lens)
That is really bad! Totally unacceptable on an HD camera. Has anyone else got examples as bad as this?
Bob Hart February 15th, 2007, 03:51 PM Dennis.
What's coming next, - aftermarket low light diffuser kit for the Mini35?
Chad Terpstra February 15th, 2007, 05:21 PM It may have to do with the color profile you use. I think I was using Paolo's TC3, but I'm not sure on any specifics. I know I have since turned down the red gain from where he had it and have not noticed anything quite this bad since. FWIW
Jaadgy Akanni February 15th, 2007, 07:26 PM The M2 does have a lovely BOKEH. Don't forget the Brevis has swappable diffusers. Check out my website and look at 35mm shorts 2 for a test i did with the Brevis CF2. Jaadgy have you used both then?
Phil
Phil, I've been using the M2 since last may, and I've also seen lots of shorts, commercials and Music videos made with it, and as far as image quality, the only adapter I can compare it with is the P+S tecnik adapter.The M2 has a much more desirable Bokeh than the Brevis. I say this even after seeing the wonderful work you've done with the Brevis - but as good as it is, it only confirms to me that the M2 Bokeh is smoother, lovelier, more pleasing.
Craig Parkes February 15th, 2007, 11:05 PM That is really bad! Totally unacceptable on an HD camera. Has anyone else got examples as bad as this?
Ok, you can shoot me if you like, put bare in mind I'm a producer not a camera op or DOP.
Can you define in the picture posted what aspects of it you consider to most highlight 'Totally unacceptable' noise, and how this is going to affect the average viewer?
When answering this - bare in mind that I am looking to shoot a narrative feature film with the P&S Techniks on the HD200/250, renting proper 35mm primes.
Originally were looking at using the HD100, but are now considering the HD200/250 so we can get full 60P in HD for slowmo shots, and a couple of other things.
The film is a thriller, will be lit in a controlled environment but also is likely to have spots of high contrast from light to shadow.
I'm just trying to gauge now whether what you are describing is a genuine massive flaw for the camera for it's intended purposes, or if it's just proving to suffer more noise than expected in certain environments.
Chad Terpstra February 16th, 2007, 01:14 AM I'm just trying to gauge now whether what you are describing is a genuine massive flaw for the camera for it's intended purposes, or if it's just proving to suffer more noise than expected in certain environments.
Definitely the later - suffers under certain circumstances. Like I said that was the worst I've experienced (and on one of my first shoots too). The best thing you can do is calibrate the camera and test test test. I haven't found any noise unacceptable since then. When using the stock lens especially there are boundaries of acceptable sharpness and color qualities (the subtler of which I'm still figuring out). It can be VERY sharp if your lens is finely tuned.
Here are a few good grabs to help encourage you. It's a great camera and I would guess a killer combo with the Mini35!
(BTW, the "HollandHome" grab does exhibit some CA on the glasses and hair. Shouldn't be a problem if you use something other than the stock lens. The average person doesn't notice anyway.)
Brian Ladue February 16th, 2007, 11:38 AM Now, are those of you who have the HD250 experiencing the same noise issues? or is this an issue only with the HD200?
Benjamin Eckstein February 16th, 2007, 01:02 PM Phil,
Your experience and advice is superbly helpful. It seems most of us are using Nikons and I was going to go that route with the Brevis that I plan to order soon, but I realized my old SLR that I have collecting dust has several fast Canon FD primes. Canon optics are known for being quite good, right? Anybody have experience with the Canon lenses.
What I wonder though is why I see a lot of pretty cheap Canon lenses on ebay and such. You can buy fast Canon primes for under 100 bucks. You can even buy a new 50mm/1.4 for like 70 bucks. Is this just way too cheap to be good?
Benjamin
Benjamin Eckstein February 16th, 2007, 01:06 PM Phil,
I notice some vignetting in a lot of the shots on your Brevis demo? Was this just with some of the lenses? Am I just making this up. The stuff looks awesome otherwise....and the vignetting adds a nice style, but obviously you wouldn't always want that.
Thanks.
Phil Bloom February 16th, 2007, 03:28 PM Now, are those of you who have the HD250 experiencing the same noise issues? or is this an issue only with the HD200?
its identical inside so it shouldnt make a difference.
With the vignettes some I added in post, some i did optically by closing down the iris of the 35mm lens which with the Brevis under certain conditions creates a vignette. I also deliberately didn't zoom fully into the gg to enhance that effect. Basically what I am saying is they are deliberate!! I did say that on the page in the shootout but I should put that on the short page too.
Canon lenses are of course superb. Just avoid EOS lenses as they have no manual iris control.
$70 for the lens? buy it! am sure it is fine!
Phil
Steven Thomas February 26th, 2007, 06:06 PM I see this thread died.
What became of the noise issue?
Is this a setting issue?
Chad's examples really look clean.
Joel Aaron February 26th, 2007, 08:37 PM I see this thread died.
What became of the noise issue?
Is this a setting issue?
Chad's examples really look clean.
Yeah - I hadn't seen Chad's stills. To me those look great. If that's not good enough I don't know what to tell ya.
Why am I buying a RED again?
Chad Terpstra February 26th, 2007, 10:41 PM I think it's partly a settings issue and partly situational. I still get some noise every now and then but it seems to be mainly on darker, predominantly red scenes. It hasn't been enough of an issue for me to want to troubleshoot so maybe I've found the right matrix settings.
I love the camera, but I think I'd still opt for the RED if I could, Joel. ;-)
Joel Aaron February 27th, 2007, 03:20 PM mainly on darker, predominantly red scenes.
I shot a dark scene lit with just a red light. It looked awful. It was noisier and looked as if it was out of focus.
I've got a feeling that most video cameras would have choked on that though. In fact, I noticed a scene in "For Your Consideration" that was of a performer on stage and the stage lighting changed to a red light only and that looked like crap too. There's probably some technical reason for that.
Tyson Perkins February 28th, 2007, 03:20 AM Yes - i found any darker scenes - such as night time city scenes are packed full of noise - unusable levels
Djee Smit February 28th, 2007, 03:36 AM Have you allready tried it with an M2 and got a foto of the setup and footage. Im consedering getting an m2 and using it with a hvx200 or jvc hd100.
And if you can flip the image in the hd100 (is that also with the hd100?) then it would be great setup to use handheld for a videoclip.
Chad Terpstra February 28th, 2007, 04:34 AM Djee, no flip in the HD100. You can physically flip the viewfinder by loosening a few screws though. I just got my Brevis tonight and am still testing it out. Looks pretty good so far. :-) I have to figure out the limitations yet though. A few wrong moves and you can see a lot of grain/vignetting with certain lenses.
Djee Smit February 28th, 2007, 04:41 AM Hmm I don't know if the rental company would like it if I would physically change the camera.
Drew Curran February 28th, 2007, 05:53 AM I just got my Brevis tonight and am still testing it out. Looks pretty good so far. :-) I have to figure out the limitations yet though. A few wrong moves and you can see a lot of grain/vignetting with certain lenses.
Chad
Keep us informed about results with the brevis and HD100
Thanks
Andrew
Chad Terpstra February 28th, 2007, 10:46 AM Will do, Drew. As of this moment though I can say that it seems that the HD100 lens/macro or combo with the achromat may be to blame partially for the vignettes. I tried my 135mm/Brevis on my FX1 and it wasn't nearly as bad. Dennis has mentioned a new Achro coming soon so that my fix it. Also he's working on an imager that will be better with vignettes on long lenses. Still too early to tell for me. I have a lot of testing to do.
Eric Ramahatra August 23rd, 2007, 10:04 AM Definitely the later - suffers under certain circumstances. Like I said that was the worst I've experienced (and on one of my first shoots too). The best thing you can do is calibrate the camera and test test test. I haven't found any noise unacceptable since then. When using the stock lens especially there are boundaries of acceptable sharpness and color qualities (the subtler of which I'm still figuring out). It can be VERY sharp if your lens is finely tuned.
Here are a few good grabs to help encourage you. It's a great camera and I would guess a killer combo with the Mini35!
(BTW, the "HollandHome" grab does exhibit some CA on the glasses and hair. Shouldn't be a problem if you use something other than the stock lens. The average person doesn't notice anyway.)
hi
very great pictures ! is that from a HD200 ?
i don't see any noise at all ! what settings did you used to achieve this ?
i don't really understand why does dark areas produce noise... why don't the camera take it as is that's all ? :D
Chad Terpstra August 23rd, 2007, 04:11 PM That was from an HD100 with the PT3 settings using Standard gamma. I don't know why the noise is there sometimes. But I do know that if you expose well (above 50IRE) that you will get cleaner images. But sometimes it has to be dark and I guess that's when you roll the dice. ;-)
Roy Beazley August 28th, 2007, 05:18 PM This is great info to hear about. So was there a total tally number of F stops of light lost with the adapter and such?
Thanks Chad for the updates!
Tony B.
Chad Terpstra August 28th, 2007, 05:44 PM Roy,
I've rated my HD100 + Brevis + 2.8 lens at 125 ASA.
I include the prime lens in there because I almost always leave it at 2.8 so it's more or less a fixed setting and I adjust the stock lens iris.
I've read that the JVC alone is about 320ASA which would make the adapter + lens a stop and a half slower.
One interesting note is that I have never gained any real amount of light by opening the prime lens up to even a 1.2. In my experience it's the same whether you're at a 1.4 or 2.8 with the Brevis. Curious I know, but I wonder what others have experienced with this or other adapters.
Phil Bloom September 23rd, 2007, 12:35 PM Roy,
I've rated my HD100 + Brevis + 2.8 lens at 125 ASA.
I include the prime lens in there because I almost always leave it at 2.8 so it's more or less a fixed setting and I adjust the stock lens iris.
I've read that the JVC alone is about 320ASA which would make the adapter + lens a stop and a half slower.
One interesting note is that I have never gained any real amount of light by opening the prime lens up to even a 1.2. In my experience it's the same whether you're at a 1.4 or 2.8 with the Brevis. Curious I know, but I wonder what others have experienced with this or other adapters.
that's odd Chad. I definately find a difference with that wide range of stops. Also with the cf3 anything over f1.8 and i get that static grain.
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