> I’m really torn between prioritizing focal range or a faster aperture. Basically zooms are trade-offs. Heavy gear causes fatigue and safety risks... so id suggest the Tamron 28-75mm f/2.8 Di III VXD G2 as the safest, most balanced choice for ur Sony a7 IV i think??

> I’d suggest the Tamron 28-75mm f/2.8... as the safest, most balanced choice Respectfully, I’d consider another option. The Sony FE 20-70mm f/4 G is actually king for Europe. You’ll definitely want that 20mm for tight architecture over the extra reach or f/2.8 tbh.

> I’d suggest the Tamron 28-75mm... as the safest, most balanced choice I've been thinking about this for a bit and honestly... I'm kinda disappointed to see everyone recommending the lighter, third-party stuff. I've had issues with those seals in the past, and they really weren't as good as expected when the weather turned south. If you're doing a once-in-a-lifetime trip, gear failure is a nightmare you dont want to deal with. I’d actually stick to your original instinct with the Sony FE 24-105mm f/4 G OSS. From a DIY and maintenance perspective, it is a much more solid build. The internal gaskets are superior for keeping out the street grime and fine dust you'll find in busy European cities. Plus, the OSS (Optical SteadyShot) in that lens works together with your a7 IV’s stabilization much better than a lens without it. IBIS alone is often overrated for those really slow shutter shots in dark cathedrals. I've taken a few lenses apart to clean out fungus or grit, and the mechanical assembly in the Sony G series is just more robust. It is a bit heavier, but I’d rather carry a few extra grams than have a lens fail me or get crunchy halfway through a trip... basically just my two cents on staying safe out there.

I've been shooting Sony for over a decade and honestly... some of these suggestions are gonna leave you disappointed. I had issues with those lighter third-party seals during a rainy month in Scotland and they just werent as good as expected when things got messy. If you're doing a big trip like this, stop obsessing over a few grams and focus on what actually lasts.

• prioritize internal sealing over weight every single time.
• stick to native glass if you want the autofocus to actually keep up with fast street scenes. I eventually bit the bullet and got the Sony FE 24-70mm F2.8 GM II because it’s way lighter than the first version and doesnt compromise on anything. It’s been my workhorse for two years now and I havent looked back once...

Yeah I totally agree about that 20mm starting point. From a technical and market research perspective, the Sony FE 20-70mm f/4 G is actually one of the most interesting pieces of glass released recently because it disrupts the standard 24-70mm segment so effectively for travel photographers. Heres how I see the current market options for the a7 IV based on the latest specs and performance data:

• Sony FE 20-70mm f/4 G: Technically the most versatile for travel. The MTF data shows it rivals some G Master primes at certain focal lengths. Losing that one stop of light is worth it for the 20mm wide end in tight European alleys where you literally cant step back any further.
• Sigma 24-70mm f/2.8 DG DN II Art: If you absolutely need f/2.8, the new Mark II version is a massive improvement. It has better corner resolution and significantly reduced weight compared to the first gen, making it much more viable for all-day carry.
• Sony FE 24-105mm f/4 G OSS: This is an older design now. Tbh, while the reach is nice, the newer 20-70mm has better coatings and faster AF motors that suit the a7 IV tracking system way better. Imo, the 20-70mm is the smartest technical choice for a one-lens setup right now. The computational noise reduction on the a7 IV is so good that the f/4 aperture isnt the dealbreaker it used to be.

Sooo late to the party but oh man, I feel u!! I literally just got back from a trip and was so stressed about which glass to pack for my a7 IV. I ended up choosing the Tamron 28-75mm f/2.8 Di III VXD G2 because it’s such a fantastic value and doesnt weigh a ton during those long walking days. Honestly, having that f/2.8 for late-night pasta shots in dimly lit cafes was a total game changer for me! You might find this useful—check out the comparison tool on RTINGS or the 'Dustin Abbott' reviews. They really help u see the sharpness differences without guessing. Also, pro tip for the budget: definitely look at MPB or KEH Camera for used gear! I saved so much money buying my Sony FE 24-105mm f/4 G OSS used there before deciding it was a bit too heavy for me. I guess the main lesson I learned is that weight matters most when youre walking 10 miles a day, lol. Is the 24mm width realy that important to u for the architecture?? Gl with the trip, itll be amazing!!! peace

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