dance festival

[Ming]

Dance for World Community Festival
Cambridge, Mass

2022/9/24

 

All pictures are taken with a full-spectrum R5.

 

EF 85mm f/1.2L II, ZWB2+TSN575, f/1.2, 1/200 sec, ISO 4000

 

EF 85mm f/1.2L II, ZWB2+TSN575, f/1.2, 1/200 sec, ISO 4000

 

EF 85mm f/1.2L II, ZWB2+TSN575, f/1.2, 1/200 sec, ISO 4000

 

EF 85mm f/1.2L II, ZWB2+TSN575, f/2.8, 1/200 sec, ISO 16000

 

EF 85mm f/1.2L II, ZWB2+TSN575, f/2.8, 1/200 sec, ISO 16000

 

EF 85mm f/1.2L II, ZWB2+TSN575, f/2.8, 1/200 sec, ISO 16000

 

RF 70-200mm f/2.8L IS at 115mm, Life Pixel 830nm longpass, f/2.8, 1/160 sec, ISO 200

 

RF 70-200mm f/2.8L IS at 180mm, Life Pixel 830nm longpass, f/2.8, 1/200 sec, ISO 800

 

RF 70-200mm f/2.8L IS at 200mm, Life Pixel 830nm longpass, f/2.8, 1/250 sec, ISO 1600

 

Bonus shots: Harvard Square turkeys.  They have a fan group on Facebook.

EF 85mm f/1.2L II, ZWB2+TSN575, f/1.2, 1/80 sec, ISO 800

 

EF 85mm f/1.2L II, ZWB2+TSN575, f/1.2, 1/80 sec, ISO 1250

 

[Wayne Harridge]

Interesting set of images, looks like some people with sunscreen and others without.  Question: Do people usually apply sunscreen under makeup if they'll be out in the sun?  Does normal makeup contain sunscreening properties?

 

  

[OlDoinyo]

Excellent image quality for ISO 16000. I wish my camera could do that.

[colinbm]

Wonderful collection

[Andy Perrin]

I think many kinds of makeup do incorporate sunscreens. 

[Nate]

Nice collection Ming!

Great iso performance with that camera.

[ulf]

This is a good example that even an UV-transmission marginal lens is usable in some situations.

Without actually having measured the transmission I am quite convinced that the UV-reach is rather bad.

Thick lenses elements and many lens surfaces coated with modern VIS-optimised AR-coating will block most of the UV.

Look at the lens buildup here:

https://photographylife.com/lenses/canon-ef-85mm-f1-2-l-ii-usm

 

However if you need the insulation of the main motif that a high speed lens gives, there are no alternative.

The lenses with really good UV-transmission are all much slower.

 

 

I do not have access to this lens for measuring transmission, but I have two older Canon FD variants with the same speed. 

Some day when I have more time (very busy with work for the moment) I might run a measurement session.

 

[Bill De Jager]

Very nice set of photos, Ming!  It's good to see some different subject matter, certainly things I haven't dared to attempt in UV.

[dabateman]

These are interesting.  I never would have thought to image a dance festival in UV.

I wonder if the beads or dress from a belly dance would look like in UV.

[Ming]

22 hours ago, Wayne Harridge said:

Interesting set of images, looks like some people with sunscreen and others without.  Question: Do people usually apply sunscreen under makeup if they'll be out in the sun?  Does normal makeup contain sunscreening properties?

 

  

Some makeup has an SPF number.  Often it appears as dark blue just like sunscreen.  But my wife uses something that becomes light blue.

 

[Ming]

19 hours ago, colinbm said:

Wonderful collection

Thank you, Colin.

 

18 hours ago, Nate said:

Nice collection Ming!

Great iso performance with that camera.

Thank you, Nate.

 

8 hours ago, Bill De Jager said:

Very nice set of photos, Ming!  It's good to see some different subject matter, certainly things I haven't dared to attempt in UV.

Thank you, Bill.

 

[Ming]

17 hours ago, ulf said:

This is a good example that even an UV-transmission marginal lens is usable in some situations.

Without actually having measured the transmission I am quite convinced that the UV-reach is rather bad.

Thick lenses elements and many lens surfaces coated with modern VIS-optimised AR-coating will block most of the UV.

Look at the lens buildup here:

https://photographylife.com/lenses/canon-ef-85mm-f1-2-l-ii-usm

 

However if you need the insulation of the main motif that a high speed lens gives, there are no alternative.

The lenses with really good UV-transmission are all much slower.

 

 

I do not have access to this lens for measuring transmission, but I have two older Canon FD variants with the same speed. 

Some day when I have more time (very busy with work for the moment) I might run a measurement session.

 

I can't measure anything, but I know transmission is poor compared to EF 40mm f/2.8.

 

[Ming]

30 minutes ago, dabateman said:

These are interesting.  I never would have thought to image a dance festival in UV.

I wonder if the beads or dress from a belly dance would look like in UV.

 

The following is a poor shot, but it's a belly dancer.

EF 85mm f/1.2L II, ZWB2+TSN575, f/1.2, 1/80 sec, ISO 5000

 

[dabateman]

13 hours ago, Ming said:

 

The following is a poor shot, but it's a belly dancer.

EF 85mm f/1.2L II, ZWB2+TSN575, f/1.2, 1/80 sec, ISO 5000

 

Thank you.

I expected some beads to be black and some to be reflected. I can kind of see that in your image above.

I only have a cheap skirt from my wife which I think is mostly plastic and some metal.  But the fancy ones are quite diverse. 

[Kai]

First of all, congratulations on the impressive shots, Ming!
On the technical side, they impressively show that speed is more important for street photography than a long "UV reach".

A question about the TSN575:
Is it now also available in 72mm/77mm? If yes, do you have a current link?

Many greetings
Kai

[Ming]

8 hours ago, Kai said:

First of all, congratulations on the impressive shots, Ming!
On the technical side, they impressively show that speed is more important for street photography than a long "UV reach".

A question about the TSN575:
Is it now also available in 72mm/77mm? If yes, do you have a current link?

Many greetings
Kai

 

Thanks for the comments, Kai.

 

I bought 77mm TSN575 from Tangsinuo https://www.ebay.com/itm/275226575209.  You can choose just TSN575 or get ZWB2 as well.  Unfortunately, they don't have 72mm-thread filters.  The quality of TSN575 seems fine -- I can't tell with certainty -- but some ZWB2 filters have issues.

 

By the way, I bought a TS-E 90mm f/2.8 following your recommendation a while back.  I have a lot of fun using it, and I have merely used the shift movement up to now.  Thank you very much.

 

[Kai]

1 hour ago, Ming said:

 

Thanks for the comments, Kai.

 

I bought 77mm TSN575 from Tangsinuo https://www.ebay.com/itm/275226575209.  You can choose just TSN575 or get ZWB2 as well.  Unfortunately, they don't have 72mm-thread filters.  The quality of TSN575 seems fine -- I can't tell with certainty -- but some ZWB2 filters have issues.

 

By the way, I bought a TS-E 90mm f/2.8 following your recommendation a while back.  I have a lot of fun using it, and I have merely used the shift movement up to now.  Thank you very much.

 

That's nice to hear :)
I have the EF 1.4 85mm and am curious to see if it can also be used for UV.
I know the TSN575 in principle. Got a 52 with the ZWB2 as standard in front of my old EF 2.8/28mm (which is a surprisingly good UV one). The IR suppression is excellent in this combination (as good as two QB21 together). I just ordered a 77er :)
Yes, the old 90mm TS-E is really good for UV. Congratulation!
Also have the new 90mm TS-E Macro, which is better in the VIS range (open aperture performance, close focus, super rotation). But it is hardly usable for UV. That's why I haven't parted with the old one yet ;)

[Ming]

On 9/28/2022 at 12:37 PM, Kai said:

That's nice to hear :)
I have the EF 1.4 85mm and am curious to see if it can also be used for UV.
I know the TSN575 in principle. Got a 52 with the ZWB2 as standard in front of my old EF 2.8/28mm (which is a surprisingly good UV one). The IR suppression is excellent in this combination (as good as two QB21 together). I just ordered a 77er :)
Yes, the old 90mm TS-E is really good for UV. Congratulation!
Also have the new 90mm TS-E Macro, which is better in the VIS range (open aperture performance, close focus, super rotation). But it is hardly usable for UV. That's why I haven't parted with the old one yet ;)

 

I am very curious how the EF 85mm f/1.4 performs in UV.  Please share what you find out.  Thank you.

[Kai]

20 minutes ago, Ming said:

 

I am very curious how the EF 85mm f/1.4 performs in UV.  Please share what you find out.  Thank you.

The two 85s differ significantly in UV.

Unfortunately, I didn't have a good motif available spontaneously.
 

My UV color chart shows hardly any color differentiation. This means that the lens only lets through a small amount of long-wave UV.
Here your 1.2 85 looks much better!

 

When I look at your aperture-time-ASA combinations, I suspect that the overall UV transmission is also significantly better with the 1.2.
 

System: Canon 6D-FS, EF 1.4 85 mm L IS USM with a ZWB2 and two QB21 (3 sandwich), WB against Teflon, direct afternoon sun.

Result:
AF works on my EOS 6D, stabilizer too. The bokeh is of course also outstanding here. At 12800 ASA you get at best 1/180 s with an open aperture (1:1.4).
Of course, because of the narrow wavelength band, there are practically no chromatic errors. The sharpness is only limited by the high ASA value. The lens itself is extremely sharp - even with the aperture wide open.

 

 

Conclusion:
If I had the 1.2 85 II, I would probably take UV pictures with it. The 1.4 85 mm is clearly less suitable. Too bad.

 

[Ming]

6 hours ago, Kai said:

The two 85s differ significantly in UV.

Unfortunately, I didn't have a good motif available spontaneously.
 

My UV color chart shows hardly any color differentiation. This means that the lens only lets through a small amount of long-wave UV.
Here your 1.2 85 looks much better!

 

When I look at your aperture-time-ASA combinations, I suspect that the overall UV transmission is also significantly better with the 1.2.
 

System: Canon 6D-FS, EF 1.4 85 mm L IS USM with a ZWB2 and two QB21 (3 sandwich), WB against Teflon, direct afternoon sun.

Result:
AF works on my EOS 6D, stabilizer too. The bokeh is of course also outstanding here. At 12800 ASA you get at best 1/180 s with an open aperture (1:1.4).
Of course, because of the narrow wavelength band, there are practically no chromatic errors. The sharpness is only limited by the high ASA value. The lens itself is extremely sharp - even with the aperture wide open.

 

 

Conclusion:
If I had the 1.2 85 II, I would probably take UV pictures with it. The 1.4 85 mm is clearly less suitable. Too bad.

 

 

Thanks so much for the prompt tests.  I like the rendering by the 1.4 lens a lot.  It's so unfortunate that it doesn't pass enough UV.  This makes the 1.2 mk II the last UV-marginal lens in the line.