nehemiahphoto
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 Re: FM Review: Voigtlander 75mm f/1.5 Nokton VM | |
Fred Miranda wrote:
nehemiahphoto wrote:
Fred Miranda wrote:
nehemiahphoto wrote:
Fred Miranda wrote:
nehemiahphoto wrote:
highdesertmesa wrote:
nehemiahphoto wrote:
philip_pj wrote:
It does some special stuff right at the transition zone. Some prefer f2 as their preferred point of compromise, both work well and it will vary by taste (and resolution too). People really want bite in their portrait lenses these days.
I realize I am a dying breed here, but I want less micro contrast and sharpness and smoother rendering than the CV typically delivers. I have been playing with different diffusion filters to liking on the CV 75/1.5 with great success (to my liking). Images have a much different feel when processed mindfully.
Very film-like rendering. Reminds me I need to order a Black Pro Mist 1/4 in 58 and 52mm for the CV lenses I've bought recently.
The one above with shot with a 1 in overcast light. I have a 1/2 as well, which is a little more neutral and does better in contrasty and harsher light. I don't want to spam the thread, but I have been using them more on the 35i, and they've been great. Mostly a 1/2 on the CV--the 1/8 doesn't really alter the feel of the image.
The wider lenses require less powerful numbers to get the same affect. Wonderfully, the Sigma 35i and CV 75/1.5 share the 58mm filter thread. I am enjoying the IQ effect so much, I've order another one or two of different types. I think I'll be able to get a very attractive Summilux like look on the CV but with smoother structural rendering, smaller size and about 3k cheaper  Excited to try out one or two of the new filter on the CV 75. And, when I want egregious amounts of fine detail resolution, which this lens has in spades--wow, I stop it down and it's incredible. All with the CV 75
Do these diffusion filters affects AF accuracy in the case of your Sigma lenses?
No.
Or, at least not in a way I can detect on my a7c with my 35i even WO with AF-C on moving dogs. The 35i is my only AF lens ATM, but I have a Samy 75/1.8 arriving I will try as well. I also don't find the MF harder until I put the 1 on, which is more powerful and really does put a SA/diffusion layer. I actually ran a test shooting Black ProMist 1/8, 1/4 and then 1 (1/1) and naked with both a CV 75/1.5 and 31 limited on a tripod with a human model for my own understanding. I also have a couple more coming to do further experimenting as they have different affects. I can share my findings on FM if you and others are interested.
Thank you! Personally I feel the CV 75/1.5 has some nice SA in the rendering, especially up close, but I was wondering if any of the Black Mist filters would be a great addition to more corrected lenses like the Sigma 65/2.
I had the same thought on the 65i. But, I ended up ordering a Samy 75/1.8 instead as it shares the same 58mm filter as my Pentax ltd, CV 75/1.5 and 35i. Once I get the effect dialed in exactly to my liking, I will probably get a 65i as the Samy 75 was fine but not super impressive when I used it before.
Once thing to consider, is these filters have different affects (aside from strengths). I think the layout it somewhat of a maze on their cite, so I will try to save you a minute or two. For you, I would not get a Black Pro Mist as it alter the image beyond resolution and micro-contrast. You can read more here and watch a highly instructive but ultra boring 35 minute video if you want 
1) I have the 3 black Black ProMist filters currently, which do this:
"Highlight flares are controlled.
Contrast is lowered, but with less lightening of shadows for a more delicate effect
Creates a soft light "pastel" effect
Delicate effect with contained highlight flare"
2) I've also ordered a "Digital Diffusion FX" which really just reduces fine detail resolution without change the character of the lens--no change of highlights, halation, shadow lifting or color affects like the Black ProMist. This is probably what you would want for a 65i. A 1/8 won't be noticeable really, a 1/4 probably a good option, and a 1/2 would probably be too much is my guess for the 65i for your taste.
This filter is described as "The Tiffen Digital Diffusion/FX Filter is a softening and diffusion filter specifically meant to appear invisible, as if no filtration is being applied. Compared to other diffusion filters, this filter offers virtually no flare or loss of contrast for more subtle applications. It helps to lessen facial blemishes, wrinkles, and gently smooth textured backgrounds while maintaining sharp focus."
3) I order a Pearlescent Screw-in Filter which I am hoping to get my CV75/1.5 rendering much close to a 75/80 Lux as it:
"Softens contrast and reduces sharpness
Reduces the appearance of blemishes and softens highlights
Creates pearlescent halo around highlights"
I recently acquired a Tamron 70-180, but I ordered the "Digital Diffusion FX" for it, has the Tamron's have crunchy renderings to my taste, that lens included, but otherwise I like it. I just want the edge take off but not alteration beyond that, similar to 65i. I will make a longer post in a bit and explain thing more with photos, and hopefully others can contribute as well.
BTW, I do like the CV 75/1.5 naked as well. I have been getting more used to it, and below is a photo from my hike a day or two ago. But I do like the ability to have "multiple lenses in one" by adding a filter.
Thanks for summary. 
Have you tried playing with Lightroom's contrast, texture and clarity to mimic these effects, in particular the 'Digital Diffusion' type?
Tiffen themselves have a "software version" for most of their filters including the ones mentioned here:
https://www.amazon.com/Tiffen-DFX-Standalone-Mac-Download/dp/B00APPAOC4
Yes--I have use a combo of Clarity/Texture in conjunction with sharpening and NR to achieve my desired textural quality. It's rare I don't use them to some degree on nearly every photo, though some more than others, depending on lens, FL, aperture etc. It's been successful but is somewhat of a pain, and needs to be tweaked. Generally, I
I have found though, personally, that adjusting everything in post, whether it's getting canon or leica colors, or film presets or using AI filters and such, they are good in terms of getting 80-90% of the effect quickly, but to get the last part, it's really a pain and often can't get there. That has been my experience, and maybe that last 10% is just me being perfectionistic/neurotic.
I am aware of the Tiffen software, but to my understanding it's been discontinued, so I don't want to invest in discontinued/non-supported products.
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