B4 Lens Test Results: With optical correcting adapter // Super 16, Super 35, E mount, M4/3, Canon RF

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This video is a condensed overview of all the B4 lens tests done in round 1 of testing including:
Canon HJ21x7.5B-III KLL-SC T2.1
Fujinon A20x8 f1.7
Canon J21x7.6 f1.8
Canon J20x8 f1.7
Canon J16x8 f1.8
Angenieux 10x25 T3.7 (PL S35 cine zoom for reference)
Sony 18-105 f4 PZ (E mount S35 modern zoom for reference)
Results of the tests cover Super 16, Super 35 with and without optical correcting adapter.
With Cine B4, HD, late SD and old SD lenses. PL Lenses and modern electronic Sony zoom for a point of reference.
This video marks the end of round 1 of testing in this series. You can watch the whole series by this playlist:
• James' adapted B4 2/3"...
Round 2 will come later this year with a bunch of different zooms.

Опубликовано:

30 сен 2024

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Комментарии : 53

@stephan_manterola 26 дней назад

Hi James, I have a J15x9.5B II 9.5-143mm and I want to use it on a Blackmagic 6K EF, what adapter do you recommend to mount it. Thanks

@jamesandcamera 25 дней назад

Hey Stephan, I am not aware of any EF adapters that work with S35 unfortunately. The only EF optical B4 adapter I know of is for S16 sensor and specifically for the C300mk2. Sorry EF is just not as suitable compared to mirrorless mounts or full depth PL

@kennyadvocat 25 дней назад

Wish Fujinon made a lense for native M43.

@jamesandcamera 25 дней назад

It would make things so much easier than using complex adapters 🎥

@OlimpiuVuia 4 месяца назад

Hey, great content! I'm looking forward to see your developments. What adapter would you recommend for fx30?

@jamesandcamera 4 месяца назад

Thanks for finding it useful 😊 For an FX30 either the IBE HDx35 adapter if you have a few $k or the one I put together and use in the corrected footage in these tests, which is more affordable. If you had heaps of budget to Sony LA-EB1 may also work, but is technically only listed as working with the FS7. I may be biased to the one I put together and sell but I think it does just as well in terms of image quality at a fraction of the cost.

@OlimpiuVuia 4 месяца назад

@@jamesandcamera Can you provide a link to purchase the adapter?

@jamesandcamera 4 месяца назад

@@OlimpiuVuia the IBE and Sony ones are easy enough to google. Otherwise email me for the one I put together and I can send you price and pics of the latest batch

@davidbajer2389 2 месяца назад

Hi James, thank you for your channel. I use a Sony FS7-M2 but would love to get back to my Canon HD HJ22eX7.7IRSE lens. I am currently using the Sony LA-EB1 B4 adapter, but the image isn't as sharp as the examples you have shown. I would love to connect and talk about your adapter.

@jamesandcamera 2 месяца назад

Hey David, my email is in the about section of this channel. I would be very interested to see the image quality you are getting with the LA-EB1, I assumed it would have been better than this adapter being 8x the price.

@RafaelangeloDeNazareth 3 месяца назад

amazing video! I have an arri alexa xt with ef mount an dpl mount and i want to adapt a b4 angenieux zoom to it... where can i find the recommended adapters you mentioned in the video>?

@jamesandcamera 3 месяца назад

Hey Rafael, B4-PL mount adapters are your only option with the XT. I don't make ones in PL unfortunately, so not really any affordable options. The only options in PL I recommend for quality optical correction are the IBE and the Arri one. Hope that helps 😊🤙

@brettalexander.studio Месяц назад

Pardon My ignorance but I am looking to purchase my first b4 broadcast lens for my Ursa broadcast G2. Looking for kind of the best all around with most zoom range and best image quality for around a thousand bucks or under. If using it on the first of broadcast G2 which adapters do you suggest for that system?

@jamesandcamera Месяц назад

For lens, it depends on the deals you can get. Any 16x or higher magnification lens would be best, as long as it has a doubler. Canon J16x8, Canon J21x7.8 are both good SD lenses. Otherwise a HJ17x7.6 is worth the extra investment if you can save for longer to have a higher budget for a HD lens. As far as adapter the Ursa Broadcast cams should have an optical corrector mount built in. If it doesn't and it is a normal Ursa mini, then you will need to determine which of the B4 mounts suits your cameras model code. It is listed where the mounts are sold.

@NVCinematography 2 месяца назад

hello greet video, can you help me find adapter B4 to RF full frame camera thanks and best regards

@jamesandcamera 2 месяца назад

No adapter exists for full frame cameras, as it would make the exposure quite dark with the approx 4.5x image expansion/teleconverter required. Sorry, it is better to just use an actual FF zoom instead in your case.

@jasonlumetta Месяц назад

Do you have a recommendation for the Blackmagic Micro Studio 4K G2? I'm looking for a longer zoom type, in low light, for wildlife. Thank you for your suggestions.

@jamesandcamera Месяц назад

Not sure for the 4K G2, it is a little trickier as it has a MFT sensor rather than the S16 in the older models. For lens, a Canon J21x7.8 would work well on a budget paired with a corrective adapters. If you have higher budget and can live with a heavy lens, there is currently a Canon J33x15 floating around on eBay for sale for a great price. It's heavy, but has an insane zoom ratio. Again optical corrector recommended. Otherwise HJ17x7.6 and HJ22x lenses are much more expencive but higher quality over all. Again optical corrector required for best results. Any B4 lens uncorrected will be soft due to uncorrected RGB offset causing spherical aberations.

@jasonlumetta Месяц назад

@@jamesandcamera I would love to try them out, just nervous to spend the $$ and then not work.

@jamesandcamera Месяц назад

@@jasonlumetta Its definitely a risk. If you want more Black Magic Micro specific experience using B4 lensing Cole at Alt-Cine has been doing a few videos on it recently. He might be better to give you first hand experience using B4 with a Micro.

@science830 3 месяца назад

whats the canon cine version? you kept dancing around the model number but never said it. searching "canon 21x cine" doesn't get me much clarity.

@jamesandcamera 3 месяца назад

Sorry mate, I assumed people would look at my other videos and find the full test I did with it, showing the full lens name. Go here for the video on it 😊🤙 if you get one, make sure you have a really rigid lens support system. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-W5MwcRI_tec.html

@jamesandcamera 3 месяца назад

There is also this older video I made showing lens model and test footage with it too 👍 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Gb_gGCaaQ94.html

@seanbonbon 4 месяца назад

Thank you so much for this video. It gives me hope that I can find a semi-affordable setup to actually make B4 lenses look good on cameras with larger sensors. So much of the test footage on RU-vid is without optically correcting adapters and it made me sad when I saw it. 😂

@jamesandcamera 4 месяца назад

Yeah, same. There is also a lot of mis-information out there. Which is why I made these videos and put together a more affordable corrected adapter for people like myself who can't afford $3000-9000 for a corrective adapter.

@seanbonbon 4 месяца назад

@@jamesandcamera Do you sell these adapters or can you point me in the right direction to find/make one? Or are there any that are commercially available that you recommend that aren't ridiculously expensive?

@jamesandcamera 4 месяца назад

@@seanbonbon ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-bxN0TT0W788.html this is an overview of the one I put together and sell. It's the only affordable optically corrected adapter. Every other adapter that has the same image quality is more expensive by several $k

@FrontRowScreens 4 месяца назад

Hey James, needing to do some long range super-slow shooting and we are considering using an FS700 (with burst slomo) paired with a SD 55x box lens. Could you suggest an adaptor for this? (2/3" B4 -> E Mount).

@jamesandcamera 4 месяца назад

Hi, definitely look at IBE B4-PL adapters then use a PL-E adapter. Or MTF do a B4-E but I have not tried MTF personally. Otherwise I convert the optical corrected B4-E adapter you see used for the corrected footage in this video series. Email me if you are interested 😊👍

@s87343jim 5 месяцев назад

Noob question: What does optical correcting adapter correct? I mean the conventional wisdom is that the less glass in between, the sharper it will get, especially the only thing we are trying to do, its to maintain the flange distance?

@jamesandcamera 5 месяцев назад

Great question, watch the first 1min of this other video I made, which talks about why with images. Basically the lenses are designed for 3CCD sensors which have very different requirements. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-bxN0TT0W788.html

@ssalceda5 5 месяцев назад

Which adaptors would you recommend?

@jamesandcamera 5 месяцев назад

Depends on what camera you want to adapt to. What mount is it that you want to adapt to?

@realisthw 5 месяцев назад

@@jamesandcamera Fuji/Panasonic (MFT/FF)

@jamesandcamera 5 месяцев назад

@@realisthw the adapter I used in these tests is one I convert. I can make it in Sony E, Canon RF, Micro 4/3 and Fuji-X. Suitable for S35 with doubler and S16 scan mode without doubler. Otherwise IBE makes great A+ adapters and MTF make good adapters.

@realisthw 5 месяцев назад

@@jamesandcamera What adapter are you using? (model and manufacturer please) As I understand you B4-EF adapter, and then you convert EF-other mount?

@jamesandcamera 5 месяцев назад

@@realisthw I make/convert the optically correcting adapter I used in these tests. It corrects for the light wavelength offsets that are designed for 3CCD sensors with prisms. Heaps better image quality than a basic passthrough adapter, or adapter with just an expansion element.

@Emiliano-Oseguera 5 месяцев назад

Nice! I use my sony a6400 with a dummy adapter and it doesn't look bad at all! Either way i shoot from 5.6 and above to avoid bad looking images

@jamesandcamera 5 месяцев назад

Yeah, the doubler clears up some haze. But you still end up with a much lower level of sharpness in the wider end of the iris range. If it works for you that way that is great, the more use of B4 lenses the better in my opinion. They are a great tool 😊🤙

@Emiliano-Oseguera 5 месяцев назад

@@jamesandcamera completely agree! I have the Fujinon 22x HD and it's been wonderful being able to go from 22 mm to 450mm I do sports cinematography so it fits perfectly for my work

@jamesandcamera 5 месяцев назад

@@Emiliano-Oseguera Ah man if you have a HD lens I would definitely recommend some sort of optical correcting adapter when you have the budget. It is worth doing with HD lenses as currently you are really only getting the quality of an SD lens and leaving a lot of sharpness untapped. Still fully understand if it's good enough for now. Sometimes that is all you need 😊👌

@Emiliano-Oseguera 5 месяцев назад

@@jamesandcamera yeah! Unfortunately optical adapters are ridiculously expensive, for now I'll keep my dummy adapter, either way the quality is pretty decent ! Let me show you an example

@Emiliano-Oseguera 5 месяцев назад

@@jamesandcamera ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ivih7xNTp64.htmlsi=DsmP9RIWRlqNHRD1