MJKoski wrote:
Whee! I got centered loxia on 1st try. Just tested @ f/2.8, focused on distant subject in one extreme corner and recomposed the same object for 3 other corners. All sharp.
Nice. I'm hoping for the same luck, but won't find out until Monday, and hopefully the weather will clear up by then. Today and tomorrow are supposed to be nothing but snow/rain and wind.
But yeah, BTW, I have one chinese step-up ring which is NOT straight. It bends the filters slightly into wrong angle causing blurred image. I thought for years that it is all the same what step-adapters you use but no, not so.
GMPhotography wrote:
Looks to be a very nice lens. It's stuck between my 15 and 25 so not as useful for me. But glad to see they continue to expand the line. I do like the size of it.
Needs change not people. I also planned on the 24-70 GM and I did get that sooner than I planned. No lens is sacred in my lineup. More than that both Batis lenses I did not like manual focusing them , has no feel to it. Great lenses both of them and I wish I still had the 25 in a way. The GM 85 I like much more than the Batis 85 but that's personal preferences . No system is sacred either I flipped them on a dime just ask Leica, Nikon and medium format. That classify me as no fanboy. Lol
Note from tonight's shooting: wicked field curvature at close distances. Nasty even. I do not recall this being an issue with the classic distagon. Or perhaps my memory fails me.
No, you are right. The classic Distagon has definitely less field curvature. The advantage of the Loxia 21mm is much smaller size and weight and slightly better corner sharpness at f/4. CA and distortion seems also to be slightly better with the Loxia, but they were never big problems with the classic Distagon for my landscape images.
MJKoski wrote:
Stopping down helps quite a bit but indeed, it seems this is closer to 28/2 at close distance than the classic 21mm big brother.
It reminds me quite a bit of the Distagon 25 (both the f/2 and 2.8) close up. I'll try to do a comparison between the three while I still have them all.
It would be nice if Zeiss made a paired center filter for it, particularly for nightscapes.
MJKoski wrote:
Note from tonight's shooting: wicked field curvature at close distances. Nasty even. I do not recall this being an issue with the classic distagon. Or perhaps my memory fails me.
The Loxia 21's field curvature is well known and the only 'complaint' i ever hear about the lens.
Depending on one's preferences, that can be a big deal or none whatsoever
But by now anyone buying the lens should be well aware (in advance) that that is what you get with that lens.
The focusing ring, or should I say barrel, is ass-designed. Really, what were they smoking when putting it together? It is tricky to attach to the camera body due to minimal surface area which is not moving when turning. Then, it is easy to bump the focus a bit when adjusting the aperture.
I suspect the design was to restrict the size of the Loxia 21 and yes you do have to mindful when you mount the lens. The focus is close to the aperture, but after awhile you don't notice it. The Loxia 21 is a very nice pocketable package
MJKoski wrote:
The focusing ring, or should I say barrel, is ass-designed. Really, what were they smoking when putting it together? It is tricky to attach to the camera body due to minimal surface area which is not moving when turning. Then, it is easy to bump the focus a bit when adjusting the aperture.
My main and almost only complaint about the old C/Y Distagon 21/2.8, was precisely this : the focus ring sitting so near the aperture. In top of that, being an internal focus design, this ring turns with very little force, so it takes only a slight rub of your fingers to mess the focus.
And now that we're on "Zeissbashland", whoever designed the front caps of the ZM series was either a sadist or a moron.
Hi! I have just bought an Loxia 21 , and I want to check the lens for decentring using the gletscherbruch metod. Should I focus in the centre first and then move the focused target in every corner? Or should I focus when the object is in the corner and then take a picture in every corner?
I have had different results when focusing in the centre and then recomposing to the corners and when I focus in the corner and then recomposing to the other corners. Might this be due to field curvature in the lens?
I`m kind of new to testing lenses so I just want to be sure that I do this the right way
PersonCyborg wrote:
Hi! I have just bought an Loxia 21 , and I want to check the lens for decentring using the gletscherbruch metod. Should I focus in the centre first and then move the focused target in every corner? Or should I focus when the object is in the corner and then take a picture in every corner?
I have had different results when focusing in the centre and then recomposing to the corners and when I focus in the corner and then recomposing to the other corners. Might this be due to field curvature in the lens?
I`m kind of new to testing lenses so I just want to be sure that I do this the right way ...Show more →
In this picture I focused in the centre first and then moved the focused target in every corner and took a picture. All pictures were taken with aperture 2.8. I have just included the cut out area from the corners in the four pictures (1:1 zoom in every corner). Would love to get opinions on the result and if you think the lens is good?