akclimber wrote:
In my wanders on the net, I've read that after 8mm of shift both vignetting and light drop off start becoming problems with the 24. I'm awaiting the arrival of a new used 24 to use with my 5D for architecture work and will certainly put the lesn thru its paces and report back (both for architecture work and landscapes). But as I mentioned in a thread above, I'm sure I'll end up buying a 45 or 90 for landscapes since I prefer "longer lens" landscapes (and want to avoid vignetting and light drop off). Frankly, I hadn' even planned on buying a 24 until the architecture work came up. I've got some good TS links that talk about this stuff but I'm traveling and they're not handy. I'll try and dig them up and post them. In the meantime, here's a good place to start:
Thanks for the reference. Have not been able to follow the thread for the last three days as we have not had power ... I think it is a significant limitation to the flat stitching technique. However, the tilt feature is phenomenal and I may keep it simlply for that.
Does this 2/3rds extra refer to shifting left to right in portrait orientation or landscape?
It seems like you'd gain more extra information by shifting along the short axis versus the long. I need to draw this out and do some pixel calculations... Maybe from that I can derive what the effective angle of view would be.
Others have stated that on a full-frame sensor the 24mm will vignette when shifted beyond 8mm... this would limit the amount of extra image.
VaRiX wrote:
Does this 2/3rds extra refer to shifting left to right in portrait orientation or landscape?
It seems like you'd gain more extra information by shifting along the short axis versus the long. I need to draw this out and do some pixel calculations... Maybe from that I can derive what the effective angle of view would be.
Others have stated that on a full-frame sensor the 24mm will vignette when shifted beyond 8mm... this would limit the amount of extra image.
That is in the landscape orientation, in portrait orientation you are supposed to get almost a full frame extra using the 5D.
I drew up some diagrams to scale comparing the effects of shifting the full 11mm in each direction for both the 20D (or any 8.2mp APS-C sensor camera).
Let me know if I screwed up the math or otherwise made an error here. Feel free to log into the wiki and make any textual additions or modifications to this page (or any page of the site) as well.
Nori, you're right. I don't know how the width got changed to 25.8 when it should have been 22.5. Argh. I'll have to correct the graphic and calculations on Monday.
That's what I get for relying on Corel's auto dimensioning... and not reexamining it.
First I want to thank you all for this thread. I've had a great time reading through this in one sweep. Like I good book...difficult to stop reading =). But d*rn, I don't need yet more expensive lenses to put to my ever growing wish list.
Varix: Thanks for those Hartblei samples, it really looks like the lens is a great performer and, only judging by these two downsized samples, not far behind or even equal to the TS-E 90. Thanks to those I might actually start looking for one so I can join the club!
ciriaco wrote:
First I want to thank you all for this thread. I've had a great time reading through this in one sweep. Like I good book...difficult to stop reading =). But d*rn, I don't need yet more expensive lenses to put to my ever growing wish list.
Varix: Thanks for those Hartblei samples, it really looks like the lens is a great performer and, only judging by these two downsized samples, not far behind or even equal to the TS-E 90. Thanks to those I might actually start looking for one so I can join the club!
I agree---great infomation. I'm loving my 45 TS-E and really wish there was a wide Hartblei as I believe I could make good use of a flexible tilt to shift mode as opposed to being constricted to perpendicular or parallel. As it is---I guess the 24 TS-E is probably on my 'to buy ' list in the future.
picnic wrote:
I agree---great infomation. I'm loving my 45 TS-E and really wish there was a wide Hartblei as I believe I could make good use of a flexible tilt to shift mode as opposed to being constricted to perpendicular or parallel. As it is---I guess the 24 TS-E is probably on my 'to buy ' list in the future.
Hehe, I think I have you to thank that I'm here. I saw your posts at dpreview on the subject .
Yes, that super-rotator function does look rather nifty. Just after I posted I actually found a vendor that imports both Hartblei and Arax in Sweden. According to him he felt that Arax had somewhat higher quality, however as I understand it the Arax has the same tilt-shift restriction as the TS-E's. Does anyone have any input on the Arax/Hartblei choice?
Zane Yau wrote:
sorry for my ignorance... what's the purpose of a TS lens, apart from correcting perspective when you shoot architecture? I can see some really nice photos here, those lensbaby-liked photos really got me thinking too...
I haven't read ahead to see what people have said - but let me throw in a little insight that I've had since owning one of these.
People say "perspective correction" and it puts a mental image in your head that I think is wrong. Here's my take.
You know how sometimes you wish you had about a 15 foot (5 meter for our euro friends) ladder to get up higher and get rid of foreground? Or how about a hole to get down in for a lower view. That is what the shift does in the vertical plane. Or how about you want to take a shot in a reflective surface and wish you could step out of the way? A horizontal shift will do that.
Typically if you want to minimize foreground you move in closer and thus have to tilt the camera up to get a tall object in the frame. This is where the converging lines comes in. The shift lens can "step up" or down so you don't *have* to tilt the lens. So it's not really a correction as much as a prevention.
Hopefully that makes sense - and maybe this is common knowledge but it was a real epiphany for me when i got mine and actually used it.
regards,
Jon
. You might have hit my website during one of those times.