Thursday, October 20, 2011

Goodbye For Now...

Here I am. With my last post before I travel next week to do the pilgrimage. I've started my vacation yesterday, Wednesday, but to start it I had to pass through 3 days like hell. I've fallen sick in the stomach (not the first time to have this) and that changed a lot of my plans.
Anyway, before I start this vacation I've already worked in my work place and took some shots and panoramas. The only one thing interesting in all of this is my use for the first time for the Photek lateral arm to take a shot for the nadir point. To do this, I've connected the VR-head on the usual tripod, and the lateral arm on the monopod. This way, I've expanded the monopod up to around the level of the camera on the VR-head and tripod combination, and then I've kept them away and ready.
The panorama didn't go without problems but anyway this is usual now and the nadir point shot was a bit off maybe, but however, I think PTGui did some nice job in aligning and compensating for the shift difference. The QTVR here needs some time to load in case you have a slow connection.



Well, that's all for now folks. Hopefully to catch up after around 3 weeks. I won't have any technology with me when I do the pilgrimage, and I won't take my camera. It's better to be busy worshiping rather. Thus, I'll be far away from technology for some weeks. Until then...


Thursday, October 13, 2011

Continuus...

Here we go, another week with tiresome days all the way. It has been a trend of somehow "busy life" in the past 3 weeks; struggling with my brother going through all the bureaucracy of hospitals, chores, work, and lately lectures for preparation before going to Hajj. As a consequence to this, I didn't have the time to work with my camera although I do have an idea in my mind to work with, and also I didn't record anything for the Ayvarith project, and I think this will be delayed until my return from Hajj in November. November will be also a busy month for me anyway. I can't wait until my vacation starts on October 19th. It is a vacation that will, after all, be busy as I would prepare my stuff for traveling to do the Hajj, but after all I won't have to wake up in the early morning... and also stay late as much as I want!

I didn't do much with my camera as I said earlier, so mainly, my work was to get busy with the Grand Mosque panoramas, and I made a QTVR in some good... compromise let's say; without the nadir point.
I've made another flat (spherical) panorama other than the one that was done last week which was done in a haste. The new one has some adjustments to the blinds and also a better saturation I'd say. Compare!

Mosque Magnam I
Mosque Magnam II

The stitching errors were enormous and hard to fix in the first version while it was relatively easier and lesser in the second. All that with just changing the Blend Priority. The second version was also the base of the QTVR that I've made later, adding a logo (sort of) of my own. Will show this later separately.
This new straight and enhanced spherical panorama, then, was the base of newer stitches in various projection styles. Believe it or not, I spent around 3 or 4 days stitching these panoramas, simply because I thought everything was OK, then it turned out that I've optimized the "Flare" along with the "Exposure" in PTGui. A mistake that wasted my time and made me do everything back again. The Flare option, in the Exposure Optimization section of PTGui,  is the one responsible for producing weird color spots in the panorama AFTER stitching. Everything would look normal on PTGui viewing screen, but the sting comes after stitching! After that I had to stitch it all over again turning off that option and everything was fine, almost.

One of the amazing aspects of such a place as The Grand Mosque is the emphasis on geometrical assemblies, not only in the architecture, but also on the ground; on carpet. The lines of the carpet helped me a lot in making some sort of a fantasia if I should say. Maybe two of the most beloved of these projections to me considering this location were the Little Planet, and the Wide-View...

Flos Lucis (Flower of Light)
Little Planet projection

Orbis Fidei (Rings/Orbits of Faith)
Wide-View projection

The straight lines in the carpet made it perfect for such an illusion, even though it was harder to clone out as it was in case of panoramic work from Ireland; where the ground was random and the VR-head can be cloned out easily. The removal of the VR-head in the wide-view version was relatively easier than other versions, while in the planet projection, I've decided not to waste my time and simply stamped a little logo that says "ألا بذكر الله تطمئن القلوب" (Verily in the remembrance of Allah do hearts find rest - Quran:13:28). I was lucky to find this phrase in a font called AGA Islamic Phrases, which can be checked with other stuff here. From this font I stamped the calligraphic phrase on a black background. The writing became blue after tone-mapping in Photomatix.
On the other hand though, removing the VR-head remnants was not an easy task in another interesting point. It was another Wide-View but as viewed from the side of the praying hall and not from the back as in Orbis Fidei.

Radii Fidei (Beams of Faith)

I can't claim that the cloning was that perfect, but probably it is less severe when viewed in such a size, but could prove a disaster when viewed on a large scale. The "tunneling" effect of this scene made a very interesting pattern that reminds me of the days when I was a physics student...

Fields of Faith (Argos Fidei)

It was done in the very beginning originally and hence the name was in English first, then I decided to move to Latin with the projections done later. Anyway, as you can see the yellow lines from the carpet make a magnetic field pattern (remember the experiment of the iron filaments and a magnet under the paper?). The broken lines from stitching errors were apparent here and fixing them was sort of easy but not perfect still. Also some weird black spots appeared on the edges after tone-mapping (apparent in the lower portions of the image). I don't know what caused these exactly but this is one of the aspects of the new Photomatix (v4.0); the tone-mapped view is not exactly what you will get at the end when you press the tone-mapping button. Sometimes the difference is so great that you won't even believe that you did it yourself.

QTVR
In the beginning I wasn't really up to it, but then I figured, with the second trial of doing the flat spherical panorama, that it's worthy of a QTVR after all. The eternal problem, of course, was for the bottom image, or the nadir. Here though, I've cut down the lower portion of the flat panorama (which has the VR-head remnants) and then, instead of doing a completely new slide with  logo of mine (the same as above), I've instead opened the "real" nadir shot and made the logo cover the proportion of the VR-head in that slide. I've prepared this slide with PTGui to bend it and then fixed it with blending mask in Photoshop.
In this mess, I've totally forgot that with what I did, I can actually put the logo BEFORE stitching completely. Because the logo would cover only the VR-head proportion, then the general features of the HDR slide would still, probably with some gambling, be saved and enables PTGui to blend it in the process of making the panorama. I've never thought of this before! I better try it as soon as possible.
Just a comparison for how it would look like when you have a flat logo in a flat panorama (and it's not easy to imagine the general shape and how it would look in a QTVR)...

Mosque Magnam II - Cropped

Mosque Magnam II - QTVR version

Of course there is no point in adding the nadir with all its hassle around the VR-head for a panorama that is supposed to be displayed like that. However, I should think ahead of doing the panoramas directly and cloning originally in the nadir slide before the stitch, might saves me big headaches. I can't believe I didn't think of this before! Damn head...






Now, I'm going to post this for the time being, and I'm going to get busy. Suddenly all the work pressure comes with me getting ready for Hajj. I've received my injections (3 of them I don't know for what!) and I feel like a mesh. I just hope I won't be suffering from fever as a reaction to this. Weekend is coming, yet I'm not sure I will be able to enjoy it...



Thursday, October 6, 2011

Mente Turbata in Mosque Magnam...

What the hell was going on with me in the past two weeks is something I wouldn't understand, ever. Stress, fatigue, injuries and finally, personal issues; feels like being dead and alive in the same time. Ah well, what's the difference after all... wasn't it like that most of the time?
I feel like nothing is left for me now except of my camera. I guess I will put it beside me on bed and hug it instead of getting a teddy bear myself. I spent this week somehow trying to test and use my new toy, the 8mm Rokinon fisheye lens and trying to adapt it to my panorama workflow.
For the time being, I'm still not so sure that I will adapt this new lens for my workflow. It is a double-edged sword. In the same time that it lowers down the number of shots and effort (and time), but on the other hand, in the same time, it reduces the resolution drastically. Although my usual size for panoramas ranges between 8,000-10,000 pixels in width, but with Canon's 15mm fisheye lens you would have the choice to expand beyond up to 20,000 pixels in width, while with Rokinon's 8mm fisheye, you are limited to 13,000. The depth of field and the sharpness are still under the scope for more testing. Setting the VR-head with Rokinon's 8mm was also a struggle and it pronounced the tripod legs and the VR-head itself more often and makes it pronounced more; talk about hardships in removing them. I need to try more and see if I can get comfortable with this for real.

Test image with Rokinon's 8mm f/3.5 fisheye lens. Mom didn't like to move so I blurred her!

I didn't care much about tone-mapping the HDR here. I just had the urge to play around. Not an image for the stocks after all. As you can see, such shot would require maybe 2 or 3 (and maybe more a bit) with Canon's 15mm fisheye lens, but here it's all taken with one shot. Well, 3 bracketed for HDR processing of course. The tripod was elevated to around 2 meters high.

My joy in the past week was with some shots taken here and there with my photography class. I had to work in a haste little bit to prepare the images for this post. It was so much of a headache to work on these photos specially now, on Wednesday, after a really sick long day.
Anyway, our class went first to Al-Babtain's Library for Arabic Poetry (Let's call it BLAP for now). On Tuesday however, and unexpectedly, I got a phone call almost one hour before I leave work saying that we have a session today with the class in The Grand Mosque; a great mosque in the capital and beside BLAP building. It was a real hassle, as my tools were at home because I thought we won't go to a second location after BLAP. It was an exhaustive day.

I. BLAP:
BLAP was an interesting place, not for its construction only, but also because it is the first time I hear of it. The interior design was nice but unfortunately I went there without my VR-head. The architecture in the place is generally modern-type, but maybe with bits (only tiny bits) of antique-like structures, like the pillars for example.

Columnae

The pillars here were outside and on the side of the main "yard" if I should say. It is a bit like an open corridor. This shot was my first in that session (and here you see the tone-mapped HDR, but the RAW is also good). To take this shot I've spent almost 5 to 10 minutes trying to adjust my tripod and the tripod head (Velbon panhead) to make the perfect center. However, seems after all it is still inclined a bit (or is it an illusion?). I've having some hard time with keeping things straight (specially when it comes to panorama making). At such moments it would be useful to have a tripod with central lock like I used to have before, but on the other hand you lose some flexibility after all. My current tripod is nice, but also can be light that you might knock it off and shake it before you put the camera. Talk about clumsy movements; welcome to the story of my life.
The occasion was also a good one to give my new Rokinon 8mm another trial. In fact, I'm less impressed for the time being in putting this lens into my panorama workflow, but nevertheless, it gives some really nice shots in singles. I have my own doubts about the claimed sharpness though; could it be I'm doing something wrong?

Reading Hall
Rokinon 8mm f/3.5 fisheye lens

One thing was for sure though; a simple tilt in the center means a severely tilted image as a whole. This is true with this fisheye lens. Although in this picture above, I've spent also around 5 minutes adjusting and leveling the tripod and the camera accordingly with the vertical straight line of the door, I've just found out when I got back home and after merging into HDR that the whole image was quite apparently tilted; it is mostly apparent in the sides, while the center was a little bit off. I'm not sure how to solve this problem further.
And there is that one shot that I "stole" from my teacher. He was taking it and I told him I can do the same, so he said go ahead! It's weird how I didn't remember such point: the most interesting views are those taken above or below us. It is a true statement, and was stated as well by George Barr in his book,Take Your Photography to The Next Level: From Inspiration to Image.

City of Mirrors II
or maybe I should call it Zenith.

It was taken in front of the entrance portal (or door, or whatever it is). This HDR version in fact doesn't differ much from the RAW version, except of maybe for adding more halos to the light bulbs. My teacher here fixed for me a problem with the tripod as well, which was not being able to point at 90 degrees up. The solution was simply to rotate the camera body itself (unscrewing the base little bit). Might be shaky situation, but it was the only solution I got. I tried hard to keep the space in the middle in the center of the shot.
In case you are wondering why it is City of Mirrors II, well, naturally there is a first one that I didn't mention here.

City of Mirror I

I won't go through all the details here with the tilt in the image as well; I guess you know it by now. However, I had to pick my location carefully in hope my reflection on the glass won't appear (and guess it didn't so far!). The glass translucent, making an interesting pattern from the inside and the outside mixing them together in a surreal look. Maybe this is one of the fewest things I like about the city life; architecture. There were some issues with the clarity of the image as well, but oh well, this is a typical problem with my 18-55mm EF-S lens. Now, thinking about it, could it be that I see things tilted because of some barrel effect? 18-55mm lens DO have a barrel distortion and I've tested it before.
There are other shots that I might keep for myself or add them here later on. But one day after this event, I got that surprising call for a session in the Grand Mosque; a perfect place for a panorama!

II. The Grand Mosque - Mosque Magnam:
Maybe I'm not that so-religious person, but surely the Grand Mosque here is a chance not to be missed. The whole thing was a hassle in the beginning, but rewarding later. Even my teacher was surprised when he got a phone call saying that we were granted a permission, as he said. It was a last moment phone call.
Anyway, because I went to work with no intention of photography work for the rest of the day, I had to sign for a short leave as soon as I got that phone call about the session, just to avoid the apex of the jam here. Went back home, prepared my tools, and then after a one-hour rest I headed to the capital with ALL my tools. What are all my tools?
  • Backpack: containing my camera and all my lenses and filters (with the adapters of course), and also contains my little spiderpod.
  • Tripod and panhead.
  • Lateral extension arm.
  • Manfrotto 303SPH VR-head.
For the time being, I don't want to talk about the weight of these things. It is not a pleasant memory! As I headed there, I was the first one to be there as usual, and remained there till others arrived and my teacher as well, and I, alone, waited for something around one hour in the outside.
As we went inside, the first thing to do was to do the hardest part: the panorama. There will be plenty of time for single shots later on.

Mosque Magnam

It is not the first time to work with people going around; I've already done that in Ireland, in the Ardeaglais Cormaic in Cashel Rock. However, here it was a bit harder with fellow photographers since some of them had to remain in one position for minutes and I have to give them their own time to take their shots.
This image you see above is done in a haste in fact because I wanted to put it here as soon as possible. There were lot of stitching errors (that might be related to the moving bodies in the scene rather than bad alignment), and I might give it one other try and try to fix these stitching errors by using Blending Priority if possible.
In this HDR panorama I preferred to use the (M)anual method and put the basic shutter speed at 2", while ISO was 400. As my teacher stated in earlier classes, and in a humorous tone "... using high ISO with a tripod is an infidelity!". This is true, but in HDR the situation is different a bit. I had to make sure that the +2EV bracket won't exceed 30", and the place was low in light (the workers in the mosque didn't turn the lights on until the dusk time after I finished the panorama). There are other projections on the way, like the vertical and the tunnel-view and the little planet. All will come in time hopefully, with a QTVR.

The dome of the place was a bit problematic. As you can see from the panorama above, there is a glass cabinet which contains a handwritten Quran with some writing tools. It is said that it is a Quran written by hand by the 3rd ruler of Muslims back then. Anyway, this cabinet was exactly in the middle of the hall (where I should place my tripod eventually), and it is exactly at the center of the dome. Although I finished my panorama placing my tripod as close as possible to the cabinet, but that didn't stop me from trying to take the center in exact position. It was the time for my lateral extension arm to be in work.
The bad thing is, I didn't bring my other camera to take a picture of the setting, but anyway, it was simply done by using the later arm to extend my camera with Rokinon's fisheye lens above the glass cabinet. Shaky, and dangerous and I could have been in trouble if the camera fell down on the glass and... break it. In the beginning, as a precaution, I was placing my hand under the camera body as it pointed upward, but Rokinon's fisheye has a really wide view and I have to give my trust to my tools and leave it hanging in the air like that and bow down to avoid capturing my head as well...

Tholus Magnus

Maybe a little bit off the center, but it was rewarding I believe. Would be off with a close up zoom, but the general geometry is fantastic as well.
There were many shots but I don't want to put everything here for the time being. I'm just glad this week is over and hope of a "brighter" week. I feel sick being myself now. Wish if I can sleep, and wake up when the world is over...

Gloriae Campus