Calm down, I can see your shot. Very blurry though. Don't you have a cable release for your 20D? They cost next to nothing on ebay. Strange that you can't use the self-timer in MLU mode...
Krosavcheg wrote:
Here it is then.
Don't have the remote so the IQ test is not conclusive - very likely due to the shake caused by mirror. Shame timer can't be used with mirror lockup function..
Absolutely 0 sharpening in PP. Only reset contrast and shadows/highlights in Canon DPP.
Oh, and output sharpening only on the original moon shot (not the crop).
There ya go... now it shows. You had .JPG when .jpg was needed is all.
Q's:
BTW, U R Sure that's at 500mm?
Was that hand-held?
I think it's OOF a bit too, no?
Focus bracketing on a pod will likely cure up these issues (I think).
CVickery wrote:
Just posted this in the alt images thread last night. There are better in this thread , but I was pleased with a first try. Shot with a Tamron 400/4 with a 2xTC using a 5DII. I was at f11...I think I need to play the the TC combo...I may have actually been shooting at f22. This is ~ 50% downsized.
No lens shot? Which Tammy 400 is it and which TC? Also in this thread we're primarily looking at 100% crops. Scaled reductions aren't very useful. See the original post here: https://www.fredmiranda.com/forum/topic/919230/0
I feel humbled.. hahah...cheers mate!
No, that wasn't handheld - tripod, which is accidentally quite light and it was right to infinity - no chance I could focus it further. Tried few at f11 and f16 with the same result. Perhaps I can calibrate the front element the same way Rokkor 58/1.2 is calibrated.
Nopp...it focuses towards infinity and reaches the end. Something lame is going on - my 35-70/3.6 don't seem to do that either. Though, 35/2.8 and 28/3.5 are just fine....
OM lenses that is...using same adapter on all of them...
Sorry I didn't respond sooner. The Nikon D300 crop sensor actually has a higher magnification than the 5DmkII. Last night I was shooting with stacked TCs on both bodies using the 500mm AFS again. On the 5DmkII the math works out to 1190mm effective focal length, but on the D300 it works out to 1785mm effective focal length. (500mm x 1.7 TC x 1.4 TC = 1190mm versus 500mm x 1.7 TC x 1.4 TC x 1.5 crop sensor = 1785mm) If you look closely, the Nikon is larger than the Canon body image. Once I image last nights work - I'll post here.
carstenw wrote:
Hmm, I don't quite understand these crops. They look the same, yet one camera is full frame and the other is 1.5x crop camera. Shouldn't the D300 shot look closer, given the same lenses are used?
Krosavcheg wrote:
Nopp...it focuses towards infinity and reaches the end. Something lame is going on - my 35-70/3.6 don't seem to do that either. Though, 35/2.8 and 28/3.5 are just fine....
OM lenses that is...using same adapter on all of them...
OK, I see. If it were me and i wanted perfectify my case I'd buy an OM film camera from the junk section for $1 and test it out at infinity. If it didn't focus all the way out (as I suspect it's not) I'd remove the rubber focus grip, carefully remove the tape, and align it till it does, then replace the tape and the grip and you should be in business.
AFAIK, that lens has a split barrel held together in alignment by a piece of chrome-tape. They can usually be adjusted between "way past infinity" and about 50m. It's old enough that someone likely cleaned the dust out of it and didn't align it properly on reassembly - thus... it's now up to you. It's pretty easy tho!
Yepp...I will toy around with it, seeming that I can get decent results at 100mm at infinity focus. Though I am flying blind, have you got any docs you can point me in the direction of?
Planning to go to my favourite lens and junk shops tomorrow on all day trip. Maybe I can score some OM cameras. I blew a decent deal in Sweden on OM-2 + 50/1.8 all for about 25USD...
Carsten, you were right...I must have made an incorrect crop on those two images. Here is last nights efforts. All I can think of why my images are so soft is the combo of two TCs loses any benefit of the extra magnification, or camera shake.
Krosavcheg wrote:
Yepp...I will toy around with it, seeming that I can get decent results at 100mm at infinity focus. Though I am flying blind, have you got any docs you can point me in the direction of?
Planning to go to my favourite lens and junk shops tomorrow on all day trip. Maybe I can score some OM cameras. I blew a decent deal in Sweden on OM-2 + 50/1.8 all for about 25USD...
$25 is too much for just a body tho. All you need is to see the focus screen. ¥500 ($5) max!
You don't need dox or a tute tho - it's really simple and the procedure is fairly non-invasive. I've only done 6 one-touch zooms but they were all so similar that this one example should serve for all - assuming that your Cosina is near to the six that is. It should be. This is the last one I did. It's a sigma 75-300 APO macro.
The lens is sitting front pointed up here. There's a stop of some sort that keeps the back (bottom) half within particular limits - that's your min and max focus range. You can see this one here... the metal key with the two screws in it. In this shot the front element (which focuses extends, on that helical thread) has been removed. You can see my reference mark which I etched across the two barrel halves (although you're only seeing the back half ). You can also see where the tape was. When taking off the tape it might be a good idea to only remove it half way and then etch or scratch a reference mark across the barrel halves before removing the tape the rest of the way. Put the metal tape on some CLEAN tupperware surface and reuse it.
Anyway if indeed it's in need of adjustment, all you would do is remove the rubber, and the tape, and then twist the top half (removed in this image) independently a little, check focus, and repeat. When you get it mark a reference across the two barrels - this time with marker or the wife's eye-brow grease-pencil. Double check and reapply the metallic tape and you're good to go. While checking you might need to use some masking tape or something to hold it while you check. I wouldn't use the metal tape for that tho!
It seems a little odd that it would be in-focus at 100mm and OOF at 500mm tho. Maybe the needed adjustment is so slight that you're actually OOF at 100mm and just can't see it?
Anyway that's the basic deal. I think given it's simplicity that there may not be any tutes or dox easily findable.
Bifurcator wrote:
No lens shot? Which Tammy 400 is it and which TC? Also in this thread we're primarily looking at 100% crops. Scaled reductions aren't very useful. See the original post here: https://www.fredmiranda.com/forum/topic/919230/0
OK, I'd should read more before I post. Here's the setup:
Cool! Thanks for that bro! Also sorry if it sounded like I was scolding or something.
Very cool looking lens! Nice 100% image too! That's seriously not too shabby! If you want to edit out the CA just go grey or use PS's brush tool in desaturate mode. I wouldn't worry about competing tho - it's all just for fun and to see how different lenses do in lunar portraiture.
Nice Tamron 400/4. I used to have one but sold it - and since haven't had the funds to buy another one. Someday
BTW - the Canon EOS 2x TC will give better results than the original Tamron 2x (assuming that is what's pictured on the lens). The Tamron 2x works very well with the 400/4 - especially considering the very low price it sells for.
Bif, cheers for the heads up on that. I just got sidetracked - picked up a zuiko 50/1.4 with stuck aperture ring and in the process of trying to remove front plate... It's a bit tedious since I don't have any proper friction tool...
pdmphoto wrote:
Nice Tamron 400/4. I used to have one but sold it - and since haven't had the funds to buy another one. Someday
BTW - the Canon EOS 2x TC will give better results than the original Tamron 2x (assuming that is what's pictured on the lens). The Tamron 2x works very well with the 400/4 - especially considering the very low price it sells for.
Thanks, bought it here from Helimat. I've never had a long tele so it's a learning experience. I'm on the lookout for the Tamron 200F 2x TC that's supposed to be designed specifically for the longer lenses, but I have the more common 01F model.
Unfortunately focus is REALLY hard to nail with a super bright circle against a black frame and no hard infinity stop with an adapter.. This was probably shot at f/11 or f/22 (can't remember which).
Be careful! Canon EOS 5D is an SLR and IR filtering is NOT suitable protection from the Sun. I hope you didn't focus that with your eye to the OVF! If you did you just permanently damaged your eye.
Bifurcator wrote:
Be careful! Canon EOS 5D is an SLR and IR filtering is NOT suitable protection from the Sun. I hope you didn't focus that with your eye to the OVF! If you did you just permanently damaged your eye.
I did use the viewfinder to focus, though, I think the risks are a bit overstated. IR light is not nearly as dangers as UV or visible light. Moreover, the filter darkens the light by 10-20 stops, plus a narrow aperture darkens the light further. In the end, the amount of light reaching my eye was probably less than a bright day filtered through sunglasses. I don't think the damage is any worse than, say, looking at a bright sky.
Calm down, I can see your shot. 
Very blurry though. Don't you have a cable release for your 20D? They cost next to nothing on ebay. Strange that you can't use the self-timer in MLU mode...
It's pretty easy tho!
