鏡頭評測 銘匠75mm f1.5旋焦玄學鏡頭評測

Hello and welcome to Analog Insights In today's episode, I take a closer look at a special lens and that is the TD Artisan 75mm f1.5 swirly bokeh for the M42 mount This lens immediately caught my attention because it was marketed in combination with an original Pentax film camera and I mean, this is 2025 and they could have easily just shown how you can adapt it on a digital camera and so on but they deliberately decided to market it also to us here to the film community and enthusiasts showing it with an original Pentax camera and I really appreciated that and then digging deeper, I realized this is actually quite an interesting lens because it is more or less directly modeled after the original card size Biotar 75mm lens the version 3 of that lens, a classic portrait lens that was famous already in the 1950s and 60s but has kind of a reputation until today and this is also why it is quite expensive on the US market so you can expect to pay around 1,200 euro easily to get into that market and then if you want one in great condition it can go really, really up and here we have suddenly an alternative completely new, introduced with a warranty a metal and glass construction that costs 270 US dollars so definitely a lens worth paying attention to from a film community perspective so I brought out my Pentax SP 500 to kind of be in line with the marketing material here and adapted the lens to this M42 mount camera and took it out on a couple of portrait sessions I used it with Sydney, the model from Most Wanted Models that was recently featured in another video here as well shooting some Kodak Portral 160 and my friend Lena was kind enough also to come out for some black and white portraits shot on Ilford FP4 and in addition to that I also wanted to take some telephoto street shots and kind of details and so on with the lens exposing some Ilford Pan 100 as always these films were developed and scanned by my trusted on film lab in Frankfurt and of course I can't wait to show you the results and take a closer look at this very interesting lens So what about the features and the optical design just like the original this lens is a six elements and four groups double gauss design with a slight difference that you have two high index lenses in there and the lens of course is visually beautiful but it is really directly modeled after the Carl Zeiss Jena Buta 75mm f1.5 original that was produced between 1952 and 1968 and affectionately is called the Big B because of kind of the size that it has here The lens was at one point replaced of course by a better lens the Pan Colas 75mm f1.4 that was introduced in 1965 but until that time it was really considered one of the best and most excellent portrait lenses out there and had already made itself a name and a reputation that lasts until this very day and apparently enough so that TD Artisan felt encouraged to create an homage of this lens The TD Artisan homage is an all metal and glass construction that is available in both black and silver and weighs between 562 and 669 grams according to the website and I was instantly drawn to the silver version of this lens find it quite appealing and also could already see how it would perfectly match my Pentax SP 500 camera So I reached out to TD Artisan with full disclosure and asked them whether I could get the lens for review here and they were kind enough to send it to me and I don't get any money from this review The only thing is if you would use the link in the description to purchase the lens I would get a little bit of a kickback but I'm really not here for the money I'm here because I was excited to see my lens manufacturer introducing something specifically catering to the needs of us film community I'm a film camera enthusiast and I jumped at the opportunity to review this lens The classic 75mm focal lens is of course interesting It's ideal for shooting portraits but also for telephoto street photography and this lens here comes with 13 aperture blades and to close it down from f1.5 to f16 and create that swirly bokeh that it promises in the marketing material but of course whenever you discuss bokeh this really comes down to the background of your subject to the distance of your subject and of course how wide open you shoot the lens because that of course affects how the lens will actually look like and we will discuss that a bit more in a minute The closest focusing distance is 0.75 meters and that of course lets you nicely fill the frame with a tight portrait and I did that here a couple of times during my portrait sessions and I really really like how that came out here and the filter size is 58mm and the angle of view is 32 degrees The lens comes with a metal front and rear cap as well as a manual, a warranty card and a box and in my opinion this is quite a package for the 270 US dollars that you get Now the big question is of course how does it perform optically So what about the optical performance and results As you can see from my results here there is a lot of sharpness in the center of the frame already when shooting in wide open but it immediately improves once you stop down to f2 or f2.8 which is typically what I do for portraits so f2.8 is my sweet spot so to speak and here you do get a lot of detail a lot of resolution and sharpness in the center of the frame and yet you also see that mid frame and towards the corners you lose quite a bit of sharpness and you have some fall off In contrast the vignetting is surprisingly good so the lens doesn't vignette a lot even when shot wide open on a full frame 35mm film frame or a full frame sensor It just performs really really well if you're adapting it to a smaller digital sensor then of course that problem is not even there But here for my use case I was really surprised to see that especially for such a vintage lens and yet I did have trouble producing a swirly bokeh I mean this lens is called a swirly bokeh lens and this is my primary expectation that I would get a lot of swirly busy background bokeh portraits and I've tried to force it a little bit here and there especially in the portrait session with Sydney having a busy background here and yet once you stop down a little bit what you do get is a really nice freezing bokeh I would call it that is not busy at all and just really nicely draws you in has a nice foreground background transition you have that typical vintage character you do have a nice 3D pop but I didn't get these crazy spherical aberrations that these kinds of vintage lenses like the card size big B are typically famous for or also some other lenses some Russian, yeah, the Helios 40 and so on that these kinds of lenses that people go for to create these crazy spherical aberrations I didn't encounter them here and maybe it was because I had to stop down a little bit here and there also because of using film and the light available and the maximum shutter speed was limited and so on but I also felt like what comes into play here are the two additional high index lenses and these small improvements that TDR has made to the lens and to me I ended up realizing okay, if I shoot it all the way wide open at F1.5 I get a lot of character out of this lens and once I stop down to F2.8 I would say it just becomes a very nice solid lens and you can basically have character on demand by switching to wide open or closing it down and that to me is almost a feature of this lens where you can say I don't have this craziness all the time but I can have it if I want to and of course the light available and my maximum shutter speeds and so on play along then I can just have it but I don't have to have it and this I found interesting how the spherical aberrations here are there but they are not as prominent and dominant as you would sometimes have it with vintage lenses So some of you might even be disappointed potentially if you really go into this lens to get this swirly bokeh but I was pleased to see that that I can have it but I don't have to have it So overall I was quite impressed by the optical performance Also I really like the color reproduction So I'm looking at this bright winter day here with a lot of sun out and still some snow on the floor and a lot of white in our surroundings I get really, really nice colors in my Kodak Portra here and when trying to shoot against the light and forcing some ghosting and flaring it performed surprisingly well even here it retained quite some sharpness but again the sharpness is mostly in the center of the frame which again is perfect for portrait lenses and maybe not so perfect for other use cases but I would argue this is the lens that you get for shooting portraits and at least for my money you get a lot of lens for the 270 US dollars and especially if you are occasionally shooting portraits and have M42 mount cameras I would highly recommend taking a look at this lens here It's a great addition to our lens collection So what about the handling and my personal impressions The lens looks and feels really good and you can see the TDR doesn't went all in here when it comes to the build quality but that also results in a relatively heavy lens which we will get to in a minute In terms of handling what I really appreciate about the lens is that it comes with a very nice aperture ring that gives you a nice haptic feedback clicks nicely into place so to speak The only thing is that the focusing throw is relatively long here So focusing from a short minimum distance to a further way especially during a quick portrait session takes a little bit of time I found and it's not ideal I would say It's kind of common for these kinds of vintage inspired or vintage lenses but yet I noticed it Visually I find the lens quite appealing and I also appreciated the beautiful markings and the finishing of the material here So really really nice and highly appeal There's one important thing to mention about the handling Before you can even start shooting it You should align the center line of the lens to your camera that you're using it with So the way this works is that you would mount the lens on the camera And there's a little instruction that comes with the lens And then you have three screws here around the mount that you would unscrew with a T5 Torx screwdriver That is not part of the packaging but that you would have to have And then once you release them slightly You can turn the lens while still mounted and align the center line to make sure that all the inscriptions are in the right place when looking at the lens from above And then you tighten the screws again and you're good to go And I found that remarkable and a little bit unusual and reached out to Jules who kind of knows his way around when it comes to manufacturing techniques and so on And he explained to me that this is basically the most inexpensive way of doing that Letting the user use T5 Torx screwdrivers And so on He basically said there would have been a more advanced and better way of solving that from a TD artisan perspective But of course also a more expensive one Because it would have to make the user Give the user a way to mount it properly And then still loosen it up internally to bring it into position And then tighten it again And then of course the easiest way to do that There are these three screws here Optically the lens completely lives up to my expectations Except for the swirly bokeh part As I've mentioned You can create it But other than that It's just a very nice vintage lens Beautiful 3D pop A really nice foreground background Transition sharpness Particularly in the center Not so much in the corners So basically what I would expect But in contrast to the original To the card size Yenab Utah Or also the Helios 40 That I've mentioned earlier This is a brand new lens That comes with a warranty card And that comes with a nice packaging A metal front and rear cap and so on And finding something in great condition On the vintage market Would potentially be quite difficult And also costly And here it really comes down To your use cases And what you want and expect from it I mean if you are a top-notch Portrait photographer And only do that all the time Then investing in a 1200 euro Vintage card size lens I get that But if you are more like me And really enjoy shooting portraits Do that occasionally And want to have a nice character lens That you can bring out When shooting an M42 film camera Or a digital camera that you adapt it to Then this lens here Makes a lot more sense in my opinion Because you get that warranty You get a brand new lens You don't have to be concerned About chasing one down That doesn't come with fungus Or balsam separation Or similar problems So this at least in my opinion Needs to be taken into consideration Before jumping at the opportunity Just because this is an alternative Doesn't mean it's better or worse There are additional factors To take into consideration To the optical performance One thing to note is During one of my portrait sessions With another friend I brought out this camera and lens And he was commenting on it Now we're bringing out the big guns Kind of insinuating that this would be A more professional lens here And I'm assuming he did that Because from a layman's perspective It looks like a very heavy and big And remarkably professionally Appearing lens so to speak And I found that interesting Because TD Artisan is not just offering That for the M42 mount Where it makes complete sense to me But they also hinted at on their website That they will introduce the lens For the Leica M mount And here I feel if I'm not adapting it But using it on the Leica M It would be simply too big And heavy for my taste And this is the only major downside Of this lens That is relatively large But most importantly It is quite heavy With at least around 600 gram And this is of course the weight Without the camera And without a potential adapter So once you add an adapter You can consider at least 100 gram Or 150 more In terms of weight And the way I noticed it That usually I use my PENTAX SP500 On a overbeard wrist strap Like all the time With a 50mm f1.4 original PENTAX lens And once I attached this lens here I basically immediately switched To a neck strap instead Because I found the weight It didn't feel secure To just hold it with a wrist strap On my hand And it was not really comfortable With that kind of weight And even when carrying it Around my neck with a neck strap I felt myself often Using my right hand To kind of alleviate that pressure And make it a bit more comfortable for me And compensate for the weight And this I found interesting In thinking about it I also thought okay This is not the perfect Telephoto street lens If I want that I think there are better alternatives On the market by now On one of the lenses I recently reviewed So I feel like It's a great lens for bringing out For deliberately Specifically shooting portraits But it's not so great For that always on Carry around lens To capture the street shots Or be on a city trip Or so on traveling This is not the lens That I would bring personally But for shooting portraits It's a really really nice alternative And personally I'm just glad To see TD Artisan Introduce such an homage lens To the vintage alternative That would be really really expensive So it comes down to your search And to your personal preferences For my money This is a great lens And especially the silver version here For the M42 mount Is a really really nice offering In my opinion So thank you very much for watching I hope you enjoyed this episode Of Analog Insights And my review of the TD Artisan 75mm f1.5 swirly bokeh A beautiful lens That certainly lives up To its ambition And what it promises to do It's a very nice homage That comes with a few Disadvantages and weaknesses Most importantly its weight And it's really up to you Whether the weight Keeps you from purchasing it As I've said It's not ideal for traveling And carrying it around all day But if you want to bring it out For a portrait session And deliberately get That vintage look That card size Lena or Helios 40 look And just get a very nice Vintage rendering With a lot of sharpness In the center 3D pop And overall some falloff Towards the corner That draws you in Then this is a really really nice Value proposition Coming here from TD Artisan And in my opinion If you're just shooting it On an M42 film camera It's a must have lens If you enjoy shooting portraits So I hope you enjoyed this video If you did please remember to like it And maybe even share it with your friends And if you want to see More videos like this Please subscribe to our channel Jules, Greg and I Really appreciate Each and every subscriber Coming our way So thanks for watching I hope to see you soon Bye