Search results for 'back focus' - page 778
Cheap Macro Lens
[quote:3496ace15f="Banjo"] The ways to get 1:1 with the macro is get a 2x tc it turns your lens into 200mm but you will get 1:1. The downside is that the resulting combination will be 1.5 to 2 stops slower in aperture, and that's not ideal for macro work. You'd probably need a couple of flood ligh...
Posted by Anvh on 21/05/2009 - 15:09
ADVISE PLEASE
The 50/1.7 will still have a place for low light work ;) But the 16-45 is an excellent performer - superb colour, contrast, and sharpness. It has an unusual construction where the barrel extends for the 16mm end - and given its close focus ability can yield some really bizarre viewpoints! :D O...
Posted by MattMatic on 21/05/2009 - 22:13
Sigma DL Auto Focus 75-300mm f4.5/5.6 Zoom
Hi chaps; just wanted to gague your opinions on this lens if anybody has any experience with it? A friend of mine who has my old K100D is keen on getting a cheap 300mm lens, and I thought i'd have a quick look on ebay for him. Came across this: Good for the price?
Posted by Snootchies on 22/05/2009 - 09:58
Sigma DL Auto Focus 75-300mm f4.5/5.6 Zoom
Hi Bob I have one of these that i use on an old Minolta Film Camera and its a very honest lens. No Bells, whistles etc. However it is dated now and the price is high so i would avoid it. This one however if you can get it for the same price or cheaper is far better.
Posted by CraigF1969 on 22/05/2009 - 10:13
Sigma DL Auto Focus 75-300mm f4.5/5.6 Zoom
I have one, and to be honest have never used it on digital. Its like most of the budget lenses in this range, ok when stopped down and a little soft at the long end. It has a push pull zoom which I hate, well I hate this one because its so stiff and that sticky substance he mentions in the listi...
Posted by Clarky on 22/05/2009 - 10:19
Sigma DL Auto Focus 75-300mm f4.5/5.6 Zoom
Cheers chaps. I've passed on the link which Craig suggested. I'm just not very knowledgable with the old 35mm lenses really (aside from the LTD's of course!!)
Posted by Snootchies on 22/05/2009 - 10:23
Sigma DL Auto Focus 75-300mm f4.5/5.6 Zoom
Hi chaps; just wanted to gague your opinions on this lens if anybody has any experience with it? A friend of mine who has my old K100D is keen on getting a cheap 300mm lens, and I thought i'd have a quick look on ebay for him. Came across this: Good for the price? It looks like it is i...
Posted by golfdiesel on 22/05/2009 - 10:30
Sigma DL Auto Focus 75-300mm f4.5/5.6 Zoom
It looks like it is in a poor state. Its still looks better than mine, that sticky gunk has erased all the lettering off mine :roll:
Posted by Clarky on 22/05/2009 - 10:38
Some 400mm Tests
Got my K20D back this morning so stuck the 120-400mm on and did a few tests out in the garden. Just looking for some thoughts on sharpness from those who use this range. No PP at all. DNG to JPG. F5.6 F6.3 F7.1 F8.0
Posted by CraigF1969 on 22/05/2009 - 13:00
Some 400mm Tests
Yeh it was a brand new camera. Focus on the 120-400mm is still slow as hell though. I dont know anyone else who has one though to touch base with.
Posted by CraigF1969 on 22/05/2009 - 19:41
Some 400mm Tests
Yeh it was a brand new camera. Focus on the 120-400mm is still slow as hell though. I dont know anyone else who has one though to touch base with. Has it the latest firmware on it?
Posted by ttk on 22/05/2009 - 20:22
Some 400mm Tests
i would take it back to srs quick, and ask to test another one, personaly i think it looks abit sotf to me and i found my 150-500mm hsm not as fast focusing as both my 170-500mm sigmas, i found that i needed to use f10 min on my 150-500mm at 500mm and both my 170-500mm were and are sharper at f6.3 a...
Posted by scottthehat on 22/05/2009 - 22:27
Some 400mm Tests
i would take it back to srs quick, and ask to test another one, personaly i think it looks abit sotf to me and i found my 150-500mm hsm not as fast focusing as both my 170-500mm sigmas, i found that i needed to use f10 min on my 150-500mm at 500mm and both my 170-500mm were and are sharper at f6.3 a...
Posted by CraigF1969 on 22/05/2009 - 22:47
Some 400mm Tests
ok craig cool.also i dont know what to suggest about the af speed the camera has nothing to do with it, i was dissapointed at the speed of the 150-500, but i will let you know when i get it back and sigma told me it should be superior to the 170-500mm and faster focusing,
Posted by scottthehat on 22/05/2009 - 23:01
Some 400mm Tests
I have contacted the author of photome regarding the wrongly reported lenses. He asked me to mail him an image which gives the wrong info and he will try to correct it. It all depends on the fact if Sigma bothered to put the correct info in the 50-500 in the first place. As a sidenote we are all...
Posted by golfdiesel on 24/05/2009 - 12:51
F.O.A. Scottthehat; Focus tests as requested.
Here they are. No PP, all the same ISO. Tripod Mounted. 2 second timer. SR OFF. F5.6 F6.3 F7.1 F8 F9 F5.6 F6.3 F7.1 F8 F9
Posted by CraigF1969 on 22/05/2009 - 23:36
F.O.A. Scottthehat; Focus tests as requested.
to be honest graig it doesn,t look bad but its not brill. not as sharp as i would like,f8 and f9 is were you wanna try get it really when shooting as its alot shaper, and i see you have had no real luck with the focus charts a could not get nothing at all, it would be nice to see a crop of each on t...
Posted by scottthehat on 22/05/2009 - 23:47
F.O.A. Scottthehat; Focus tests as requested.
have you tried adjust the front focus, also how did you do the focus chart test as to me i looks like it has major front focus,
Posted by scottthehat on 22/05/2009 - 23:54
F.O.A. Scottthehat; Focus tests as requested.
have you tried adjust the front focus, also how did you do the focus chart test as to me i looks like it has major front focus, I havent tried the focus adjuster as according to reports if you adjust for front or back focus @ 400mm you get major front or back at the 120-250mm range.
Posted by CraigF1969 on 23/05/2009 - 00:00
F.O.A. Scottthehat; Focus tests as requested.
Just did the focus test as they said on the blog. Flat table, tripod, AF, focus on the cross. Heres the crops. These look woefull at all apertures. f5.6 f6.3 f7.1 f8 f9
Posted by CraigF1969 on 23/05/2009 - 00:11
