I kind of had that feeling it was the lens. Yeah thanks everyone for being straight and honest. This is a know issue and will be fixed by Sigma at no cost. It works fine on my D3x, it works with TTL focusing on the D500 but not LV focusing (focuses at 0.3m only, irrespective of real distance). What focus distance does the lens indicate it is using? Reverse engineering sometimes gets broken by new hardware. Is this a lens programing issue? The lens has the focus motor and chip that interprets the instructions from the camera focus system. I'm extremely curious to see it perform on the D500. Having said that, I want to pop on a nikon 17-55 because I know that sucker was fast and accurate even on the old fuji S5Pro I was using years ago. I will confess that I have not tried my other lenses though and I sure expect the oposite, other wise there are two things really going on here, something not set up properly in my camera that I'm missing, or all this "amazing " AF performance is all marketing exaggeration. What happened? This sigma lens does not lock AF. The D500 is supposed to be an amazing camera that shoots at what, -3/-4 EV? Right? Well last night I was shooting in my office room and turned the lights off, but the lights in the outside room were turned on, and I did have the door open a little to go the point where I can see and distinguish what I'm looking at, so basically I was not shooting in darkness like some of those YouTube videos I have seen. Personally I don't think the "light" was the problem, it is the sigma len's capability itself. In fact, if the problem was that it (accurately?) focused on a person near you in general light, I would think the lighting was the problem. It might be the spotlights were good for AF accuracy and the "broad" lighting was not, or maybe something else. Sample images in both types of lighting could be useful.
#Focus problems sigma 18 35 1.8 manual
I clearly had the focus point AF-S shooting in fully manual as always and pointed at the person on the stage standing still there and i was taking the shots, but the person in front approximately three stinking yards away was in focused. The worse part is that I got the XT2 and returned it because I thought this combo was going to be the perfect pair, I mean, a freacking D500 with a 1.8 zoom lens? it doesn't get better than that, right? I guess I was wrong. This a big big two thumbs down for sigma from my part. What's the point in having good optics if the AF stinks.įrom all the knowledge i had about this lens AF issues was that it was not going to be sharp straight out of the box, and thats exacly what happened, fine, i was already expecting that, no biggie and it was a really quick adjustment in fine tuning it, but if this lens actually behaves like this then this product is useless for me, and is going back tomorrow. This lens behavior is totally unacceptable for my work. Well if this is the case I'm kissing this brand good buy and sigma has a ZERO sale from my part. So I guess this is one of those famous AF issues these lenses are known for.
#Focus problems sigma 18 35 1.8 iso
I've been càlibrating the 18-35 and it's big brother 50-100 for more than a month on the dock and have been getting better and much quicker results just by shooting my girlfriend in handheld headshots at high iso to keep up the shutter speed rather than than the many hundreds of tripod mounted shots at focus targets,lined up batteries, mesh patterns at an angle, etc.my 2 lenses seem easily fooled by varying lighting scenarios ,especially if the background has any significant ambient ,and if there are any close by objects that are contrasty in the frame.But all in all ,when these 2 do focus,they are my sharpest by far. A D500 missing shots like this? I doubt is the camera though, but maybe there is something I'm not aware of? Have any of you experienced this? how did that happen?Īgain, this clearly does not look like a calibrating issue so i seriously doubt I need the hub, but what on earth happened here? This to me is not good at all. What the heck?! I mean, I clearly had the focus point AF-S shooting in fully manual as always and pointed at the person on the stage standing still there and i was taking the shots, but the person in front approximately three stinking yards away was in focused. Today, we had another show at the same place but this time with those ugly auditorium lights turned on and with no spot lights and after seeing my photos in LR LOTS of the photos are front focused. No problem, ALL my photos came out perfectly focused and sharp. The lights were turned off for the entire show and only with the spot lights toward the stage. Last week I shot at my kid's school play in the auditorium. Everything was working perfectly fine and getting sharp images. I just got this combo and i did adjust the lens in-camera already.
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