Mark9473

I love solid manual focus lenses and the concept of how you used this one. But unfortunately the images are not that convincing - rather unsharp. What aperture did you use? Could you comment on how ...

You're being unreasonable.

Luckily they are all optical zoom and not digital zoom. Look in the camera database here to find date of introduction - the more recent, the better, usually - and possibly links to reviews and user ...

No, try the L-Mount forum.

I think the focus throw becomes shorter if you turn the focus ring faster.

Yes. Correct. I would love to know that too, but I doubt it exists.

The only option is to try and edit the EXIF to fool PhotoLab into thinking it's another lens. But I think that's pretty pointless since no other lens will have the same distortion profile or ...

That's the WO RedCat. I've seen some pretty nice results from it. Nice small telescope, that one. https://www.astrobin.com/gear/88440/william-optics-redcat-51-apo/

You are the one who said it has purple/green colour fringes, not me. Sure. I'm not trying to sell anyone on this lens. But having seen posts from people searching for super rare lenses in sometimes ...

Do you expect an answer on such a hypothetical question, given the new one isn't actually out yet? ;-) I had it in the film era, and also two 80-200 zooms and a 70-210 and none of them were truly ...

So then it's not an apo. Doesn't matter what the name tag says, it's the results that matter. Hard to understand how you would call this sample image they posted a black and white. No doubt ...

That's a very good summary (nothwithstanding the exceptions that are out there, of course) No doubt that's why you won't see it marketed in a normal photography context, I expect.

Good point. A lens such as this is certainly beyond the point of diminishing returns for me.

I think you're telling us the site where you downloaded this from, posted a composite. ;-) The faces look quite unnatural to me.

Something non-standard that came on the market recently: http://www.askarlens.com/index.php/en/class1/179.html This is a full-apo astrophotography lens packaged as a camera lens. The sample images, ...

Did you do something with an installation of any DxO version on any of your computers?

You start with 18  135  3.5  5.6, then multiply every number by the crop factor 1.6.

Your Canon Rebel has a 1.6x crop factor. Your 18-135 f/3.5-5.6 lens is, for purposes of depth of field, equivalent to a 28.8-216 f/5.6-9 lens on the D750. For a more visual approach to your ...

Yes, there is nothing to remark on the state of the optics. You can read more here - this is the site that inspired me to buy the 3.5, and he nailed it. http://www.sassmannshausen.eu/lenses-html/mf ...

I have the Nikon 135 /2.8 AIS and also the f/3.5 version. No difference at f/5.6 but at wider apertures the f/3.5 is noticeably better in sharpness and contrast.