Monstro & Standard OLPF

[Philippe Therasse]

Hi ,
what kind of OLPF do you recommend me with the Monstro ?

80% of my shooting is in daylight with a lot of sun but with white and brown people (La réunion) and maybe Hight contrast on the background.
20% of my shooting is in night but I'm going to add light to recreate the moon and a warm light (2500°K) on the characters.

I thought using Skin Tone Highlight OLPF but the Rental company advices me to shoot with Standard OLPF to keep the black clean .
What do you advice me?

What the sensibility of the Monstro in IPP2 mode with Standard OLPF and Skin Tone OLPF ?

Thank you very much.

Phil

 

[Russ Fill]

I have and use all of the OLPF filters for my Monster. I personally prefer the STHL filter due to its ability to roll off the... well hightlights. ( Sun on water reflection, Sunny beach under a umbrella with every back ground part of the shot in sun, under dappled light in the forest with full sun splashes of light, at night with full fire light in frame) My last 2 moths of working has been on white sand beaches and I work with many different toned skin and the plus's for my use out weigh the not having the ability to deal with windows and bright parts of a setup (White sand beach) rather than having the extra low light. This is in most cases for my work but when Im shooting a night setup with street lights or even fire light Im usually giving up a bit of the highlight roll off by putting in the Low Light OPLF.. The Standard is great but most of my work is ether full sun white beach or reflections off of water or in dark night with fire light and tungsten lighting.
I feel you can get away with a lot more using the STHL from your 80% shooting your talking about. It is a real bonus to gain about a stop with the Low Light OPLF. The standard is in-between these but from what I feel if I had only one choice Id go with the STHL...
I hope this helps.
Maybe you can ask the rental company to get a Low Light OPLF and include it in the kit. OR maybe split the cost to give you the extra ability to have that in your kit.?
Cheers

 

[Philippe Therasse]

Hi Russ, than you very much with advices and feedback.
If I use low light olpf, I 'm going to set the Monstro at 800 Iso.
If I put the standard Olpf, Could you tell me, what' s the sensibility of the sensor ? 500 Iso?
Thank you.

 

[Ian D]

I am curious about this also. I work in very bright situations and have been very happy with the stf on the dragon. From what I have read there is only a very slight difference in the transmission of light between the low light and the standard. Is this regarded as true? Talking to the guys at red they said there is no real need to change to the skin tone filter and to just stick to the standard, is there any more informed options on this?

Kind Regards
Ian

 

[Phil Holland]

I am curious about this also. I work in very bright situations and have been very happy with the stf on the dragon. From what I have read there is only a very slight difference in the transmission of light between the low light and the standard. Is this regarded as true? Talking to the guys at red they said there is no real need to change to the skin tone filter and to just stick to the standard, is there any more informed options on this?

Must be something in the air, just answered this a few times this week.

Generally speaking I would just run with the Standard OLPF most of the time. Essentially it has 3% less light transmission than the Low Light Optimized OLPF, which is a very minimal light loss, and features some of the better qualities of the Skin Tone - Highlight OLPF.

The Skin Tone - Highlight OLPF is indeed more aggressive and ideally you'd rate it 1-1/3 stop less than say the Standard or Low Light. If you enjoy the image on the Standard at ISO 800 for instance, ISO 400 might be pretty gravy with the Skin Tone - Highlight OLPF. That's actually what my shoot last week ran with.

I've published a fair amount of ISO Ramps on properly exposed charts with tones, it's pretty easy to discern the noise variance across the ISO Range. Some even like working at higher ISO Ratings even with the more aggressive filter.

 

[Ian D]

I appreciate that, if nothing else the light loss on the skin tone is helpful to keep the nd count down. I think a skin tone is ideal for the desert environment, and I'll keep the standard for low light, unpredictable situations.

Kind Regards
Ian

 

[Mike P.]

Has anyone done a compensated noise/DR comparison between the OLPFs on any camera? E.g. LLO at 1600 t2.8 vs STND at 800 t2.0 vs STH at 400 t1.4? (or .3, .6 and .9 ND)

Would be interested to see how much more (if any) the STH holds in the highlights *after* adjusting for the OLPFs acceptably clean ISO whilst maintaining proper exposure. Would the over/under change, or is that inherent to the OLPF?

 

[Phil Holland]

Has anyone done a compensated noise/DR comparison between the OLPFs on any camera?

Yes. All of them. It's in my various test videos over the years.

 

[Mike P.]

The only one I remember is the one with the cymbal; was that ISO/Exposure compensated, or all at the same ISO/Fstop?

 

[Ian D]

Thanks Phil Holland. This seems to reference the question clearly.

http://www.reduser.net/forum/showth...p-Latitude-Above-and-Below-18-Gray&highlight=

 

[Michael Lindsay]

For me there was 4 reasons to use the STH OLPF with the last generations of Dragon..

1) A better more nuanced colour response
2) lack of deap stop orbs
3) throwing away a stop or so
4) less Red in my lens flares

From my initial tests with Monstro number 1 (better colour) was much less needed to the point of not being relevant for me.. the other 3 are still relevant.. and also the STH creates even channel noise in blacks at a different and warmer colour temp...