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Forum: Digital Processing, Software, and Printing 2 Days Ago  
The Darktable Users Coterie
Posted By ChristianRock
Replies: 36
Views: 841
So one of the things I have tried to do is to use the tone splitting tool (instead of tone curves) to simulate the look and feel of film. I didn't do a lot of photography back in the film days - I had an Olympus point and shoot camera that I used with Kodak Gold and that was it. So I won't be creating any specific film presets anytime soon. I wish I could, but I think one has to have experience with how a film behaves to emulate that specific look.

So here's an example of my "generic Film look" using split toning.

Summer fun by ChristianRock, on Flickr

I used the same look here, but a bit more sparingly:
St Maarten Port - Vintage look by ChristianRock, on Flickr
Forum: Pentax SLR Lens Discussion 2 Days Ago  
prime, prime, everywhere a prime...
Posted By ChristianRock
Replies: 4,903
Views: 261,566
Right, but the Mamiya/Sekor and the Rikenon/Auto Sears 55 1.4 (which I suspect might be the same, I don't know) are both very highly regarded, can both be found for well under 100 bucks, and as far as weI know aren't Tomioka... they could be a Ricoh lens in fact....
Forum: Pentax SLR Lens Discussion 2 Days Ago  
prime, prime, everywhere a prime...
Posted By ChristianRock
Replies: 4,903
Views: 261,566
A lot of those have Thorium glass in it... but are very highly regarded, said to be better than a lot of the Takumar 50 1.4 variations in terms of sharpness.
Forum: Mini-Challenges, Games, and Photo Stories 2 Days Ago  
Thematic Post Your Cloudscapes
Posted By ChristianRock
Replies: 2,088
Views: 92,383
Clouds on St Kitts

St Kitts Island View from the Cruise Ship by ChristianRock, on Flickr
Forum: Pentax SLR Lens Discussion 2 Days Ago  
prime, prime, everywhere a prime...
Posted By ChristianRock
Replies: 4,903
Views: 261,566
Interesting, might have to give it a try... here we are fans of slow cooking, the crock pots get a lot of use! So we haven't used the Instant Pots as they are primarily for speeding up cooking, no?
For doughs and such things, my cheapo Oster breadmaker is fantastic, it has been going on for years and looks very ragged but just works flawlessly, never missed a beat...
Forum: Pentax SLR Lens Discussion 2 Days Ago  
prime, prime, everywhere a prime...
Posted By ChristianRock
Replies: 4,903
Views: 261,566
Maybe I need to get out of Pentax forums a little bit now, thanks :mad::mad::mad:


(and into the kitchen... :lol:)

On a related note, I love making my own pancakes in my cast iron skillet - I can make them crisp on the outside and real fluffy inside -, but the wife and kids don't appreciate them so I haven't made them in over a year. meh.


Aaand speaking of primes. Here's the broken Rikenon XR 50 1.4 that I take out when I'm bored and want to play with bokeh. It had the Nikon 2A warming filter attached. Taken at f/1.4 because that's the only thing it does :lol:

Foosball bokeh by ChristianRock, on Flickr
Forum: Digital Processing, Software, and Printing 2 Days Ago  
The Darktable Users Coterie
Posted By ChristianRock
Replies: 36
Views: 841
For those interested in checking out Joćo Almeida's t3mujinpack, here's his web page on it.

t3mujinpack - film emulation presets for Darktable

Very highly recommended, even if just to be amazed at the work he does with nothing but tone curves.
Forum: Pentax SLR Lens Discussion 2 Days Ago  
prime, prime, everywhere a prime...
Posted By ChristianRock
Replies: 4,903
Views: 261,566
Now I'm really hungry... :mad:

:lol:
Forum: Pentax SLR Lens Discussion 2 Days Ago  
prime, prime, everywhere a prime...
Posted By ChristianRock
Replies: 4,903
Views: 261,566
From what I have seen about the 40mm Limited vs XS, the Limited has better coatings. Even comparing SMC versions, the tests show that the Limited has about half the CA of the XS. With the HD version that is even further improved. Or so the tests say :)



I'll be interested in your thoughts about shooting the M42 lenses stopped down, when the viewfinder gets a bit dim.
Forum: Pentax DSLR Discussion 2 Days Ago  
The K10D Club!
Posted By ChristianRock
Replies: 4,290
Views: 389,494
Regarding the "sense of depth" and natural look that I was talking about earlier, I'm not sure if this is a good example but here it goes...

Bells by ChristianRock, on Flickr

Of course sharpness also has to do with it (and the lowly $32 Takumar-Bayonet 135 2.8 is VERY sharp). But it's almost like I can touch those flower stems and feel them. It doesn't look like a flat representation of the scene, it really seems like a natural representation of the flower to me.

Probably a bad example, but there it goes.
Forum: Pentax DSLR Discussion 2 Days Ago  
The K10D Club!
Posted By ChristianRock
Replies: 4,290
Views: 389,494
And here's the Red 5 again from that same day...

Red 5 by ChristianRock, on Flickr

Too much bokeh, I know :lol: but I hadn't done bokeh in a while. I'm actually trying to get away from the "sea of bokeh" thing, but sometimes it's a guilty pleasure...
Forum: Pentax DSLR Discussion 2 Days Ago  
The K10D Club!
Posted By ChristianRock
Replies: 4,290
Views: 389,494
What a beauty!



I did notice that your picture was quite a bit more saturated than yourp previous works...

I go through phases. A oouple of years ago I was all excited because I created some profiles in Corel Aftershot Pro that really had a nice film look and feel to them. I was so happy and thought that would be my style from then on. That lasted for all of a couple of months... not too long after, I switched to RawTherapee (had to switch computers and could not find the plugins for my ASP Pro anymore, they only had the latest ones to work with the latest version). There I found the HaldClut film emulations which were ok. Then I found the HaldClut Fujifilm Xtrans profiles, and those were really good! But those weren't the proper film-like look. These apply the exact same color corrections and processing (which was back-engineered somehow by some clever fellow) that Fujifilm applies in their X-series digital cameras. Now those were killer! With one click the pictures really improved quite a bit.

Here is the link for those who use RawTherapee (I think Paul is using it?): Fuji Film Simulation Profiles – Stuart Sowerby

But here's the thing, these aren't really film emulations, they're basically taking the films as inspiration for a more digital-like approach. So the Velvia will have very saturated colors and lots of contrast, Chrome will have that desaturated look, Astia will be natural but with good contrast, etc. So I was back with a more "digital" look - and that happened, really, since I got RawTherapee. The files are nice and clean but have the things that I associate with digital... a little lifeless and perhaps "flat" if you will.

Moving forward to earlier this year and I found myself trying other programs. Was I going to have to do like everybody else and move to Lightroom? I always found that Lightroom users end up having a bit of that digital, "flat", perhaps too clinical look. I tried a few other free programs that were not very impressive and then found out Darktable had done a Windows build... That goes along with RawTherapee as the two free programs that people like to rave about, so of course I tried it. At first I thought the workflow is a bit counterintuitive, espeicially when it comes to processing a lot of pictures, but I was very impressed by how the files looked just by applying what is called the "base curve". Not clinical, "flat", one-dimensional! Files seem to retain that depth, I don't know how to explain it, but it's a more natural look than any other program I've used so far and what I have seen coming out of Lightroom.

Add to that the excellent film "emulations" by Joćo Almeida from Portugal (a.k.a. t3mujin), and I was instantly able to get a more natural look from my files - even my CMOS files looked quite a bit better. And I quoted emulations because again, it's not trying to make it look vintage, but simply applying the good attributes from those classic films to the files.

I'm not sure I can demonstrate this in practice because it is subtle and I'm not the greatest photographer. But it's made me realize that what I liked about film was the feel of reality and depth, not just a certain "look". And while I don't think we're there yet in terms of achieving it with digital means, it's probably closer than it's been before.

Does that even make sense? :lol:



As a teenager I had posters of rock bands and race car drivers. Maybe that's why I didn't get married until I was 35... :lol: (*)


(* Ok, it wasn't that simple, it was a long winding road... had tons of troubles and got into dark places that God fortunately was able to pull me out of ...)
Forum: Pentax DSLR Discussion 3 Days Ago  
The K20D Club
Posted By ChristianRock
Replies: 470
Views: 64,322
Ah ISO 640 was my limit with the K20D, but knowing how to better deal with noise today, I could have probably gone a little bit higher...
Forum: Pentax DSLR Discussion 3 Days Ago  
The K20D Club
Posted By ChristianRock
Replies: 470
Views: 64,322
Thank you! I like that Samsung sensor a lot, I really do. I think color accuracy was better than the Sony sensors generally speaking (gotta love the K20D greens!), it's the dynamic range that really was the only big issue with it.
Forum: Digital Processing, Software, and Printing 3 Days Ago  
The Darktable Users Coterie
Posted By ChristianRock
Replies: 36
Views: 841
The styles do basically all the RawTherapee pp3 files can do. There are some noise reduction styles out there but honestly that is one thing I apply individually for each picture, so I haven't used them.
The trick with high ISO in Darktable is to run multiple instances of the noise reduction module.
Having said that, I got some really good results with RawTherapee on my K-S1 ISO 3200 files.
Forum: Mini-Challenges, Games, and Photo Stories 4 Days Ago  
Thematic Post Your Cloudscapes
Posted By ChristianRock
Replies: 2,088
Views: 92,383
Forum: Pentax DSLR Discussion 4 Days Ago  
The K10D Club!
Posted By ChristianRock
Replies: 4,290
Views: 389,494
Great story, I love it :lol:

I was a big fan, despite being from Brazil and always rooting for Senna and Piquet as well. But you had to love Nige's driving style and the sheer enthusiasm he seemed to show once he was behind the wheel of a Formula 1 car...

Regarding warming filters, I highly recommend it. I have several, my favorite being the Nikon filters, which are said to be made by Hoya. I have a Hoya for my Sigma 30 1.4 that I also like, but the Nikons seem to be different. I have some 81As and 81Bs but like to use the 81As the most. I bought them cheap, too, since everybody seems to be getting rid of them these days. I even bought a cheap 77mm Nikon 81A a few years ago for my Tokina 19-35mm when that was my go-to zoom lens for all family outings. The Tokina has a cold rendering so that filter was almost always attached.
Forum: Digital Processing, Software, and Printing 4 Days Ago  
The Darktable Users Coterie
Posted By ChristianRock
Replies: 36
Views: 841
I got jealous of the RawTherapee users having all the fun... so I thought we needed a thread where we can share knowledge and - why not? - pictures.

I'll start by mentioning the basic startup article: Getting started with the Darktable photography workflow application | Opensource.com

Then there's also the parametric masks, a great feature that I haven't used much yet but is one of the main reasons I moved to Darktable:














You Tube




The other main reason being the ability to do spot removals, something a lot of other programs don't do, and Darktable does extremely well IMHO:














You Tube




But what keeps me is the quality of the raw conversion. Not having used Lightroom before, I believe the image quality is likely on par with that program which most people use.

Finally, I have to mention the styles page that is also very helpful. Find it here: dtstyle.net - a darktable styles repository
I have used and highly recommend the following styles:
- 01_NWAL_Basics_settings - wanicophotos
This is the perfect starting point to any picture. In fact, if all you do is do a batch conversion of RAWs to JPEGs using just this preset, most if not all of your pictures will look better than what the Pentax JPEG engine can do (I have K-S1, K50 and K10D - newer Pentax cameras will have improved JPEG engines so this statement might not apply to them).
- ALL the styles marked "t3mujinpack". These are film emulations but are not just that. They emulate the strengths of these films but none of the weaknesses IMHO, so no grain, no reduced dynamic range like you would see in more "accurate" emulations.
- For black and white, there's one called "B&W with a twist (less sharpen)" that I think is fantastic, but I'm no B&W connoisseur. The t3mujinpack Acros emulation is very nice as well. For a warm B&W style, the "Mirco Kassisch" is my favorite. This one (and the B&W with a twist, mentioned earlier) make good use of the split toning module, which is such a powerful tool within Darktable and one I have also been using to make my color pictures look a bit more "vintage".

For people used to the Xtrans emulations in RawTherapee (I used them a lot after I found them), they are available for Darktable here: dt styles for arangast's "New Fujifilm XTrans film simulations" - darktable - discuss.pixls.us
Don't use the ones in the dtstyle.net page! The ones in the pixls.us page work much better. Also, only apply them on RAW files, as they don't look right when applied to JPEGs. Use t3mujinpack styles if you want to have the film look applied to JPEGs.

I have recently uploaded a few styles to the dtstyle.net page, as well. They can be found closer to the top and are the ones with my name on them (Christian).

In summary, what I like about Darktable is that it can be as deep or as simple as you'd like. There's some quirks but nothing that keeps me from making this my program of choice.

Here's an image that had basically nothing but my "Landscape Sunny Day Pop" style applied, and then it was cropped to 16:9.
IMGP6724 by ChristianRock, on Flickr

Share your Darktable experiences and pictures!
Forum: Pentax DSLR Discussion 4 Days Ago  
The K10D Club!
Posted By ChristianRock
Replies: 4,290
Views: 389,494
Whenever I am bored the Rikenon XR 50 1.4 with the broken iris which is stuck wide open, is always guaranteed to bring out some amusing bokeh. The fact that my 52mm Nikon warming filter seems to be stuck in front of it only makes it quirkier...

These are scenes from around the office when everyone else has left...

Racing out of bokeh by ChristianRock, on Flickr

Foosball ball by ChristianRock, on Flickr

Foosball bokeh by ChristianRock, on Flickr

A vase by the window by ChristianRock, on Flickr
Forum: Pentax SLR Lens Discussion 4 Days Ago  
The Bokeh Club
Posted By ChristianRock
Replies: 13,685
Views: 1,240,439
Bokeh speed with Rikenon XR 50 1.4
Racing out of bokeh by ChristianRock, on Flickr
Forum: Lens Clubs 5 Days Ago  
24mm Club - Any and All 24mm
Posted By ChristianRock
Replies: 115
Views: 3,111
Forum: Pentax DSLR Discussion 5 Days Ago  
The K10D Club!
Posted By ChristianRock
Replies: 4,290
Views: 389,494
Yeah no argument from me here! :lol: I guess what I meant is that for CMOS, purples are particularly difficult.

And we don't need to talk about greens, of course. Tokina 24 2.8 again:
Chattahooche Pointe Park Path by ChristianRock, on Flickr
Forum: Pentax SLR Lens Discussion 5 Days Ago  
The Bokeh Club
Posted By ChristianRock
Replies: 13,685
Views: 1,240,439
K10D and Tokina 24 2.8
Purple and Green by ChristianRock, on Flickr
Forum: Pentax DSLR Discussion 5 Days Ago  
The K10D Club!
Posted By ChristianRock
Replies: 4,290
Views: 389,494
I was behind with my files, thanks to having had a 2-week vacation... I think I'm pretty much caught up now.

M 50 1.7
The rock and the pond by ChristianRock, on Flickr

Tokina 24 2.8 and some beautiful CCD colors... nobody seems to talk about CCD purples, but to me they are distinctly better and more natural looking!
Purple and Green by ChristianRock, on Flickr
Forum: Lens Clubs 5 Days Ago  
Manual Zoom Club
Posted By ChristianRock
Replies: 710
Views: 56,211
SMC-A 70-210 f4... from an Atlanta Zoo visit back in 2014. I hope I haven't posted those here before... taken with the K20D.

what bird3 by ChristianRock, on Flickr

rhino by ChristianRock, on Flickr

elephant by ChristianRock, on Flickr
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